User guide

How a session runs.

One instructor drives the patient from a phone. The learners work a responsive simulated monitor-defibrillator — and you decide what their actions achieve. For a lecture hall, one monitor can present to a whole class on a read-only link, and you can put questions to the room with live voting and shared results.

7QK3ZX 2:14

Sinus · HR 75 · SpO₂ 98

Patient Therapy Device

Share the code or the link

NAP

75 98

AlarmsNIBP DEFIB PACER

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Quick start

Run your first session

Prepare the patient

Open the controller and choose a patient preset — built-in or one you saved earlier — or set the rhythm and vital signs yourself.
Choose how quickly changes should appear: Instant, Smooth (about 5.5 seconds) or Slow (15 seconds).
Under Therapy, choose the On-shock policy — the default, Ask instructor, lets you pick the result when the learner charges — and the pacing current needed for capture. The learner dials the shock energy on their monitor.

Connect learners

Open the Session panel to share the monitor QR code or the 6-character code, and to set how many monitors may join (five out of the box, up to 16).
Ask learners to tap Start monitor. This also allows monitor sounds to play.
Use the separate instructor invitation only for colleagues who should share the controls.

Run and observe

Use Patient for vital signs, presets and the respiratory pattern, ECG for the rhythm, Therapy for CPR and the defibrillation workflow, and Device for sensor faults and signal quality.
Learners operate NIBP, alarm silence, defibrillation and pacing on their monitor.
Watch Learner actions on the Therapy tab for shocks and pacing attempts, then adjust the patient as the session develops.

Advanced life support

Run an arrest station

The shape of a cardiac-arrest station in NAP, from staging to ROSC. NAP models no drugs and never evolves the patient by itself: adrenaline, amiodarone and the return of circulation are all yours to narrate and to enact by changing the patient.

Stage the arrest

Set the pre-arrest patient — a preset or by hand — and start the stopwatch in the controller's top bar. It is your cycle clock, and every learner action is stamped with it.
Under Therapy, leave On-shock on Ask instructor or choose the outcome in advance; check the pacing capture threshold if pacing is in play.
When the moment comes, tap the VF arrest preset, or set VF or pulseless VT on the ECG tab. The capnograph flattens and the pulse-derived numbers blank on their own.

While they work

Tap the floating CPR button as compressions start: the artefact buries the rhythm, the HR tile counts compressions, and EtCO₂ follows the quality you set on Therapy. Tap it again at each rhythm check — the rhythm and the pulse tone come back.
Set RR on the Patient tab to the bag rate (about 10) once someone is ventilating; the capnogram shows ventilations only at the rate you set. Leave it at 0 until then.
Their shocks land on the monitor and the post-shock sheet asks you what each achieves. Below 100 J (4 J/kg in a paediatric room), or unsynchronised on SVT, AF or flutter, a shock never converts whatever you chose. Drugs are yours: say it was given, then change the patient the way you want it to respond.

ROSC and after

Convert the rhythm from the post-shock sheet or the ECG tab, then set the SpO₂, BP and RR the patient should have. They appear at once — nothing climbs back from zero by itself.
Stop CPR so the pulse tone and pulse rate return: the pause-to-confirm check, as at the bedside.
Review Learner actions on the Therapy tab for the timed list of shocks and pacing attempts, then reset the stopwatch for the next team.

Another way in

Start from the big screen

Setting the room up before the learners arrive? Start at the display instead of on your phone — it is usually where you are standing.

Open the display

On the wall screen, laptop or tablet, open NAP and choose Start a monitor.
Tap once to start. That also allows the monitor's sounds to play.
It waits with a pairing code on screen, silent, showing no patient — nobody sees physiology before you have set it.

Take the controls

Scan the code with your phone's ordinary camera. No app, and nothing to allow.
Your phone opens the controller and takes charge of that session.
The waiting screen clears and the monitor starts showing the patient.

Add the rest of the room

More monitors join the same way learners always join: with the 6-character session code, or the QR from the controller's Session panel.
Devices do not need to share a network — each one just needs internet. Only the offline setup, where one machine serves everything on a local network, requires them all on the same Wi-Fi.
If your phone disconnects later, the patient is untouched and the display keeps running — reopen the controller on the same device and it rejoins. The display shows its pairing code again only after ten minutes without an instructor; before that, another device takes the controls by typing the session code under Instructor's device died? Take over their session.

Scenarios

Build a case, then run it live

A scenario is an ordered series of patient states you author once and step through during teaching. You stay in control the whole time — NAP never changes the patient on its own.

7QK3ZX 2:14

✎ Chest pain to ROSC 1 step ＋ Capture step

PatientECGTherapy

SinusVTVFAsystole

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Audience

Put a question to the whole room

A demonstration lets a large class watch one monitor live; audience questions turn that watching into voting. The two live in different places — the demonstration on the monitor, the questions on the controller — which is exactly what this walkthrough shows.

NAP7QK3ZX Audience: Off

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Learner controls

Use the monitor

Defibrillation & cardioversion

Tap DEFIB and select the required energy.
For cardioversion, turn on SYNC and confirm that markers appear on the sensed QRS complexes.
Tap Charge, then Shock. A synchronised shock waits for the next sensed R wave.
After every shock, SYNC switches itself off — as on a real defibrillator — so re-arm it for another cardioversion.

Transcutaneous pacing

Tap PACER and set the pacing rate.
Raise the output in mA while watching for electrical and mechanical capture.
Capture begins when the output reaches the threshold chosen by the instructor.

NIBP & alarms

Tap NIBP to take a cuff reading when manual mode is in use — the cuff pumps and bleeds audibly while the pressure counts up and down. Alarms judge the last reading, not pressures nobody has measured.
Tap Silence alarms to pause alarm sounds for two minutes; tap it again to resume them.
Silence affects only that monitor's sound — and its viewers', if it is presenting a demonstration. It never changes the patient or the alarm limits. The separate Pulse tone key mutes the pulse beep alone; alarms, the charge tones and the shock still sound.

Advanced Monitoring

Specialist modules

Optional specialist views that extend the same shared patient. Each has its own guide, so the reference below covers them only in passing — blood gases, which every room can use, are documented there in full.

Processed EEG Available in beta Explore raw EEG, a processed index, signal quality, EMG and suppression as related parts of one teaching picture, with a density spectral array (DSA) showing how the spectrum moves over time.
Advanced haemodynamics Available in beta Invasive arterial, central-venous, pulmonary-artery and wedge (PAOP) pressures on the shared patient — switchable channels with a transducer zero, level and press-and-hold wedge workflow, plus a method-labelled pulse-contour cardiac output (CO / CI / SV) from the arterial line.

Open the Advanced Monitoring guide → Processed EEG overview

Everything it can do

Tap a group to open it inside the panel — the strip that appears jumps straight between groups, and Close brings the full set back.

Reference 14 groups · 95 entries

12-lead ECG

Acquire on the monitor: The 12-Lead key opens a live 3×4 montage with a lead-II rhythm strip. Acquire freezes a clean 10-second capture to read; Live resumes.
STEMI by territory: Inferior, anteroseptal, high lateral, posterior and right-ventricular (RV) — with the correct reciprocal ST depression, because elevation and its mirror are one injury vector. Non-localising ST depression sits in the same picker.
Read the axis like the textbook says: Every limb lead is the same single heart vector seen from a different angle, so the relationships students memorise hold on any strip you acquire: II equals I plus III, the augmented leads sum to zero, and the I-versus-aVF quadrant method genuinely finds the axis you set. Turn the axis and all six limb leads move together, because there is one vector underneath them rather than six separately drawn traces. (The chest leads are shaped per lead, so the relationships above belong to the limb leads.)
Bundle branch blocks: RBBB and LBBB with the discriminating V1-versus-V6 morphology (the rSR′ / monophasic-R patterns) a single lead cannot show.
Mimics & metabolic: Hyperkalaemia (peaked T), pericarditis (diffuse STE + PR depression), LVH voltage and Wellens deep T-wave inversion — the Metabolic & mimics picker on the ECG tab.
Set a long QT: Under Repolarisation (QT) on the ECG tab, choose a target QTcF — QT corrected for heart rate by the Fridericia formula — at 450, 480, 500 and beyond, or back to Baseline. 450, 480 and 500 are the ICH E14 outlier categories, the same lines a drug-safety ECG lab uses. The rendered T lengthens toward your target on every lead and on the monitor trace, so the long-QT picture is visible rather than described; the number the readouts show is measured from the drawn trace and may differ from the target — at fast rates a long target is capped before R-on-T, and the readout reports what was actually drawn. It composes with the overlays above and never changes the rhythm on its own — to show torsades, you select that rhythm yourself.
Measurements on the capture: An acquired 12-lead shows the intervals it can measure underneath, in a machine-style teaching layout: heart rate, PR, QRS, and QT with two corrected values — QTcF (Fridericia), the primary, and a smaller QTcB (Bazett) beside it. They come from the strip you captured rather than from the number you set, so some strips show fewer of them — torsades, a fused T wave or a live ST change leave the QT unmeasurable. The two corrections are worth playing against each other: raise the heart rate and QTcB climbs while QTcF stays put — Bazett's over-correction, demonstrated live on one patient rather than asserted. The ≥500 marker applies to QTcF only, at the ICH E14 outlier line — the same line for adults and children, not an age-specific reference range and not a diagnosis.

Vitals & transitions

HR, SpO₂, BP, RR, EtCO₂, temp, ST: The − and + buttons step the value; a tap is fine and holding one down accelerates.
Tap a card, or hold it: Every patient card answers to two gestures. A TAP inspects — the ECG card opens an enlarged live strip, a probe card switches that probe on or off. A HOLD (about half a second, anywhere on the card except the − and + buttons) opens that card's settings: the rhythm picker on HR, the 12-lead and mimic pickers on the ECG card, signal quality on SpO₂, the cuff mode on BP, the unit on temp and EtCO₂.
The HR card on atrial flutter: Flutter is the exception: the HR card's − and + step the conduction ratio rather than the rate, and the derived rate shows beneath the ratio chip, so a jump from 100 to 150 reads as dialling 2:1 rather than a broken stepper. Holding the card opens the same ratio picker plus the flutter-wave-rate control (200–350) — the two together let you build drug-slowed flutter and, at 1:1, the broad-complex conduction crisis.
Type a value instead: Crossing a wide range by tapping is slow, so every numeric card's hold-sheet opens with a box you can type into — the current value is shown as a hint, the keypad appears on a phone, and anything out of range is pulled back to the nearest limit.
Systolic and diastolic move together: Linked by default: change one and the other follows a plausible curve for that patient — the gap between them widens as the pressure rises, the way stiffer arteries behave, and it differs for a child. Switch the BP sys/dia control to independent to set an unusual pair on purpose: two patients with the same systolic can genuinely need very different diastolics.
ST elevation / depression: A J-point-to-T plateau lets you raise or lower the ST segment gradually.
Change speed: Instant, Smooth (about 5.5 seconds) or Slow (15 seconds) for a change to reach the monitors.
Patient presets: Healthy, Sepsis, Hypoxia, STEMI, Peri-arrest, VF arrest and Asystole set the whole patient in one tap (a paediatric room offers Resp distress and SVT in place of Hypoxia and STEMI) — breathing patterns and the 12-lead overlay included, so a leftover apnoea never survives a preset. STEMI also sets the matching inferior 12-lead. On an adult, one specialist preset sits alongside them: a class Ic flutter conducting 1:1 to a fast, broad-complex tachycardia — rhythm, conduction and the wide QRS set together.
Save your own: ＋ Save current on the Patient tab stores the live patient — rhythm, vitals, breathing patterns, 12-lead overlay, everything — as a one-tap preset in this browser. Edit lets you delete one; built-ins stay.

Blood gases

Where it lives: Advanced tab, in the Blood gas section beside Advanced haemodynamics — opening it engages nothing else. Set a gas up there, then hand it to the room when a learner sends one. Nothing appears on the monitor until you release it.
Start from a clinical picture: Fourteen presets, in two groups. The first group walks the patterns — a metabolic acidosis compensated and uncompensated, acute against chronic respiratory acidosis — so the pairs can be read against each other. The second group is the presentations you actually reach for, commonest first: arrest and severe shock, sepsis, type 2 respiratory failure, DKA, salicylate, hypochloraemic alkalosis, type 1 respiratory failure. Every preset and reference range is an adult value in every room — NAP does not model age-banded gases, and in a paediatric room the panel says so.
Adjust the gas, and choose what a pH change moves: Adjust this gas opens sliders for pH, pCO₂, bicarbonate, base excess, potassium and glucose. Bicarbonate and base excess are one value under two labels, so they cannot be set to contradict each other. A control beside the pH — A pH change moves: bicarbonate or pCO₂ — decides which axis absorbs a pH change, preselected from the picture and yours to switch, because that is a clinical choice rather than something to guess; NAP asks before it would push the chosen axis past its limit. pH is never stored — it is always recomputed from the pair, so a NAP gas cannot disagree with its own arithmetic.
Arterial or venous: The Sample control switches between them. A venous sample is the same patient sampled differently: the pH and pCO₂ carry the published venous offsets and the oxygen tension is a typical peripheral value. The card labels itself VBG and says plainly that its pCO₂ and pO₂ do not stand in for arterial ones — a learner who reads a venous pCO₂ as arterial is making exactly the mistake the literature documents, so that unreliability is the teaching point rather than a rough edge. Saturation is not shown on a venous card at all.
Release it as a result: Release to the room puts a timestamped card on every monitor and observer screen. It is FROZEN — a printed slip, not a monitored value. It does not track the patient, and a later gas is a new sample rather than an update to this one. Take it down when the moment has passed.
Save a gas for next time: Name a gas and it is stored in this browser, alongside your scenarios, patient presets and question decks — load or delete it from the same panel. A scenario step does not carry a gas, so this is how a case always opens on the same arterial gas.
The gas and the patient are not wired together: Editing a gas never moves the monitor, and moving the monitor never rewrites a released gas. So a saturation of 98% on the screen can sit beside a gas that disagrees with it, and that is on purpose: you decide what the patient is, and NAP will not quietly reconcile the two behind you.
Units follow the room, not the sample: Three switches on the panel header — kilopascals or millimetres of mercury, glucose in mmol/L or mg/dL, haemoglobin in g/L or g/dL. They describe whoever is reading, so each is independent and they change under a card already on screen. There is no single regional setting because no one bundle matches practice — the EU, UK and US each mix these conventions differently.
Highlight the abnormal values: A checkbox marks everything outside its reference range. It is off by default — reading the gas unaided is usually the exercise — and it can be switched on mid-discussion without re-releasing the card, so you can let a group work through it and then reveal the pattern. The comparison is made against the number as printed, in whatever units the room is set to — and on a venous card against a venous range, so switching how the blood was drawn never invents or hides an abnormality.

Sensors & alarms

Leads / probe / capno line: Detach any of them: that trace flatlines and its numbers blank. Pull the ECG leads with the SpO₂ probe still on and the rate falls back to PR from the pleth — and still alarms if that pulse rate is dangerous.
Technical alarms: A disconnected sensor is an equipment fault — a quiet, low-priority tone, never the patient alarm.
Patient alarms: High- and medium-priority alarms use a banner and flashing numerics. High priority sounds a rising five-pulse burst in a 3+2 rhythm, repeating about every 5 seconds; medium sounds the first three notes of the same figure, about every 13.
Limits on screen: Every alarmed numeric — HR/PR, SpO₂, NIBP, RR, EtCO₂ — shows its alarm limits beside it, the same numbers the alarms are judged against.
Change the limits, on the monitor: Tap the small edit control on any alarmed numeric. The sheet switches that parameter's alarm on or off and steps the limits it actually has — SpO₂, for instance, alarms on a low limit only. Auto from patient recomputes the HR, respiratory-rate, blood-pressure and EtCO₂ limits around the patient as they are right now — several parameters at once, from whichever sheet you tap it. SpO₂ is deliberately left out, so its sheet does not offer the button: a limit derived from a desaturating patient would be set to accept the desaturation. Limits are room state, so a change reaches every screen at once — which makes limit-setting itself teachable, alongside the alarm-silencing habits worth discussing.
Silence: Two-minute silence with a countdown, and a second tap resumes.
Apnoea is not instant: When a breathing patient stops, the apnoea alarm waits about twenty seconds before it sounds — a monitor does not call apnoea on one missed breath. The respiratory rate drops to zero straight away, so the number tells you before the alarm does. An arrest is different: there is no breathing to wait for, so it alarms at once.
Where the rate comes from: A respiratory rate can be measured three ways — from the ECG electrodes, from the SpO₂ probe, or from capnography. Below capnography the card tags where the rate came from — est. from pleth, or from ECG; with capnography attached it says nothing, because that is the measurement rather than a stand-in. The rate only blanks when all three are off.

The monitor, up close

Real paper speed, and the 1 mV bar: The ECG lane sweeps at a true 25 mm/s against a 10 mm/mV gain — the same proportions as ECG paper — so a complex has the width-to-height relationship you would measure on a printed strip, and the small bracket at the left of the lane is exactly 1 mV to check the gain against. On a phone held upright there is not enough width for 25 mm/s to show a usable stretch of rhythm, so the lane drops to 12.5 mm/s, the half speed real monitors offer, and the label says which one you are looking at. The choice depends only on the screen's orientation — never on which surface you are looking at — so two screens of the same shape always sweep at the same speed, and each one labels the speed it is running.
Choose the monitored lead: The lead name in the ECG lane label is a control: tap it to step through I, II, III, aVR, aVL and aVF. The whole trace changes with it — QRS, P wave, T wave, ST shift and any overlay — because the six limb leads are one heart vector seen from six angles, the same model the 12-lead montage draws. So the axis you set is readable from the monitor strip alone: turn it rightward and lead I goes negative while aVF stays up. The choice belongs to the screen at the bedside and travels the room, so every monitor and every viewer follows it; on a viewer's screen the label shows the lead but does not change it. Lead II is the default and nothing about an existing scenario moves when you leave it there.
Display panel (⚙): The gear at the top of the vitals column. Vitals font size S / M / L / XL / 2X — set a projector large and a phone small; the choice is per screen and persists on that device. The CO₂ scale is here too, 0–50 or 0–100 mmHg — chosen, never automatic, like a real monitor: a reading past the top clips and says so on the tile, so pick 0–100 before a hypercapnic case.
EtCO₂ in mmHg or kPa: Switch the unit in the display panel, on the controller Device tab, or by holding the EtCO₂ card. The unit applies to the whole session — every screen follows.
NIBP auto-cycle: Off, 2.5, 5 or 10 minutes, set per monitor in the display panel — the monitor re-triggers the cuff on that interval, like a transport monitor.
Power-on: A brief self-test splash before live traces, and the SpO₂ probe spends its first seconds searching before it locks — monitors never wake straight into a running screen.
A real rate counter: The pulse beep lands exactly on the drawn QRS, and the displayed HR wanders beat to beat in AF and ectopy, the way a QRS counter really behaves.
A pulse rate, and the deficit: Beside the SpO₂ number the monitor shows a pulse rate, counted from beats that actually eject. In atrial fibrillation it reads below the ECG heart rate — the pulse deficit, which widens as the rate climbs — and in bigeminy it falls to roughly half. In PEA it blanks while the ECG rate marches on. A fast <em>regular</em> rhythm keeps its pulse: an SVT at 180, or a child at 240, still beeps and still shows a pleth. NAP shows both numbers and leaves the gap for you to read, never labelling it.
No pulse vs PEA: The monitor banner names the rhythm — VF, VT, ASYSTOLE — and says NO PULSE only when the rate itself is zero. The controller's status strip, once the pulseless flag is set, reads no pulse for VF, VT, torsades and asystole, and PEA only for an organised rhythm without a pulse.

Resuscitation

Manual defib: Energy select → charge (with the rising tone) → shock. The waveforms keep running behind the panel.
AED mode: Switch learner monitors to a representative semi-automatic AED — adult rooms only in V1, fixed 200 J, the learner presses SHOCK. Choose whether it auto-analyses when the pads go on or waits for the learner to tap ANALYZE; it advises shockable / non-shockable from the current rhythm and, like a real AED, won’t analyse through compressions (stop CPR to let it read). In a room that waits for the learner, ANALYZE stays on the device through the two-minute CPR countdown, exactly as the button on a real AED does — press it to re-analyse straight away instead of waiting the cycle out, which is also how you move a demonstration along. The shock it delivers follows the same On-shock policy as the manual defibrillator. Turn it on under AED mode on the Therapy tab, where you also see what the AED sees and its live phase mirrored from the room.
Synchronised cardioversion: SYNC marks every sensed QRS and the shock lands on the R wave, never near the T. After the shock, SYNC reverts to off — like a real defib — so a follow-up VF shock is never blocked.
Transcutaneous pacing: Rate and output in mA; at or above your threshold it captures — spikes, paced complexes, a real pulse, and with it every pulse-derived number at once: SpO₂, blood pressure and breathing return together, because one circulation judgement feeds them all. Demand mode like a real pacer: 0 mA delivers nothing, and while the intrinsic rate meets the set rate the stimulus is inhibited — it takes over by itself if the patient slows below the dial.
CPR: Represent chest compressions: the artifact buries the rhythm, EtCO₂ tracks compression quality, and the HR readout counts the compressions themselves — a reassuring number that means nothing, so pause to check the underlying rhythm. It drifts the way a real rescuer's rate does rather than sitting on a fixed figure. The SpO₂ pulse rate blanks during compressions and <strong>the pulse tone stays silent</strong>, even if you set a rhythm that perfuses: an oximeter cannot pick a returning pulse out of the compression artifact, so a beep would announce ROSC that nobody could really have detected. Stop compressions and the tone returns — the pause-to-confirm check, exactly as at the bedside. EtCO₂ is the honest early signal, and the ventilations on the capnogram follow the RR you set on the Patient tab (0 until someone is bagging). When the patient is pulseless a floating CPR button appears in the corner, reachable from any tab: one tap starts compressions; while they run, tap to stop (a two-tap guard against a fat-finger) and long-press to switch quality good↔poor. The Therapy tab holds the fuller controls — quality and how fast a quality change eases in.
Adenosine: On a regular narrow-complex tachycardia the Therapy tab offers adenosine as a prompt, not a modelled drug: you choose what it does. It can convert to sinus after a brief pause, or produce a transient block that reveals the underlying atrial rhythm without stopping it, or be recorded as No conversion. It is offered in every age band — adenosine is first-line for paediatric SVT — with the outcomes matched to the band. No dose appears on screen — you narrate that. It is the only drug NAP names: every other drug is yours to narrate and enact by changing the patient.
Your rules: Set the On-shock policy — the default, Ask instructor, opens a post-shock sheet the moment the learner charges — and what capture costs. Change it between shocks to script the arrest.

Paediatric patients

Switch the room to a child: A patient-class control in the setup row just below the controller’s top bar: Adult, or Paediatric with an age band — Infant, Small child, Bigger child or Adolescent. It’s the one shared patient at that age, so every monitor and observer follows.
What rescales with the band: Choosing a band rescales the vitals, alarm limits, weight-based defibrillation (default 4 J/kg, a J/kg ladder on the monitor) and cardioversion, pacer rate and the haemodynamic numbers together — the whole picture moves as a child, not an adult case with smaller numbers. Two things do not: blood gases stay adult values (the panel says so), and AED mode is unavailable in a paediatric room.
Changing age replaces the patient: A child can’t change age mid-case, so switching band asks you to confirm — it names both patients and warns if a scenario is running — then resets, keeping the room code and everyone connected.
Presets and scenarios adapt: One-tap presets and the demo scenario are keyed to the band — the STEMI shortcut becomes SVT for a paediatric room.
The ECG follows the age: The waveform shape is age-adjusted, not just the rate: the frontal axis drifts leftward as the band gets older — the infant’s sits a little to the right of the adult’s, still a normal axis, not the newborn’s right-axis deviation (neonates are out of scope; the youngest band is a six-month infant) — the P, PR, QRS and QT durations are scaled with age, the chest leads show the R/S progression maturing (right-dominant early, adult-direction by the older bands), and the juvenile T-wave pattern resolves left-to-right across V1–V3 with age. It’s built from published paediatric normal-limits references, so it reads as a plausible child’s trace for that age band — one representative pattern, not a validated or PALS ECG, and not a per-patient generator. Processed EEG, if you enable it in a paediatric room, still runs the adult model.

Troubleshooting

Keep the session moving

The monitor is silent or has not started

Tap Start monitor on that screen, turn up its volume and make sure mute is off. Browsers wait for this first tap before allowing sound.

The session code is not accepted

Check all six characters against the code at the top of the instructor screen. If the session has ended, start a new one and share the new code.

A monitor briefly disconnects

Leave the page open. It will try to reconnect automatically. If it does not return, refresh the page and enter the same session code.

“Your recent changes may not have reached the monitors”

The controller watches its own connection, and it says this when the link has gone quiet for long enough that a change you just made may not have arrived — most often venue Wi-Fi dropping without the device noticing. It reconnects by itself and re-sends what it holds, so in most cases the monitors catch up within a few seconds and the message clears. If it stays, refresh the controller and enter the same session code.

It appears only when you have actually changed something since the last update arrived — an idle controller on a patchy connection will not show it.

The instructor device closes or loses power

The patient keeps running on every monitor — a phone call or a dead battery does not end the session. Reopen the controller on the same device to rejoin. If that is not possible, another device can enter the session code under Instructor's device died? Take over their session on the controller's start screen, after a 30-second safety delay. A display started from the big screen shows its pairing code again only after ten minutes without an instructor. All of this needs the session to still be running: sessions close after 30 minutes with nothing attached — any connected monitor or controller keeps them alive — or 12 hours after they start (sooner only if NAP is completely full and the space is needed); once one has closed there is nothing to take over, and the monitor screen will say so and offer to start a fresh session.

A viewer can't join the demonstration

Check the D- code (viewers use it in full, dash included). If the demonstration is full or the presenter locked new viewers, the screen says so. If the demonstration was ended or the link rotated, share the new code from the presenter monitor's panel.

Viewers see “demonstration paused”

The presenting monitor lost its connection or was closed. Reopen it on the same device and the demonstration resumes by itself; viewers reconnect without doing anything.

You launched a question but nobody can vote

Questions go to the people watching a demonstration. Start one first (tap Audience: Off on a monitor) and share the D- code — each viewer answers from that watch screen. Monitors and co-instructors don't vote.

The page opens and the code is accepted, but monitors never start

Some hospital and venue networks filter the live connection while letting the page itself load. Try one device on mobile data or a phone hotspot: if that one connects, the venue network is filtering, and the room is best run on a hotspot or from the offline setup below.

A screen says it is out of date

A controller or monitor that has been open for days can be running an older version than the rest of the room, and it says so in a banner. Reload that page; the session code stays the same.

You need to work without internet

NAP works online in the browser now. A prepared laptop can also share it over the same local network without internet, but this setup is not yet a one-click option.

Ready?

Free during beta. Starting takes a few seconds.

Control a session →

How a session runs.

Run your first session

Prepare the patient

Connect learners

Run and observe

Run an arrest station

Stage the arrest

While they work

ROSC and after

Start from the big screen

Open the display

Take the controls

Add the rest of the room

Build a case, then run it live

Put a question to the whole room

Use the monitor

Defibrillation & cardioversion

Transcutaneous pacing

NIBP & alarms

Specialist modules

Everything it can do

Scenarios

Rhythms

12-lead ECG

Vitals & transitions

Breathing & device

Blood gases

Sensors & alarms

The monitor, up close

Resuscitation

Paediatric patients

Joining & teaching together

Show one monitor to a big group

Ask the audience

Running it anywhere

Keep the session moving

Ready?