Patient Care and Monitoring: Setup, Artifact, Alarms, and Safety
The Patient Care and Monitoring domain tests the practical side of rhythm work: who needs monitoring, how to obtain a clean tracing, how to troubleshoot artifact and alarms, how to keep the patient safe, and how to document and escalate. Many items are scenario-based and reward assessing the patient before touching the monitor.
Monitoring setup and indications
Indications include arrhythmia detection, post-myocardial infarction care, antiarrhythmic therapy, electrolyte disturbances, syncope, and post-procedure observation. A 3-lead system gives one view; a 5-lead system gives multiple. For MCL1, place the positive electrode at the 4th intercostal space, right sternal border, the negative electrode on the left shoulder, and the ground on the right shoulder. Clip hair, cleanse the skin, abrade lightly, avoid bone and muscle, and rotate sites.
Artifact and alarms
Common artifacts are somatic tremor, 60 Hz electrical interference, baseline wander, loose electrodes, and cable movement. When a rhythm looks impossible, check the patient first, then leads, electrodes, cables, and gain. Set alarm limits according to policy, respond promptly, and never disable alarms to quiet a unit.
Emergencies and safety
Assess responsiveness and pulse. Ventricular fibrillation and pulseless ventricular tachycardia require immediate defibrillation and CPR; asystole and pulseless electrical activity require CPR and a search for causes. Never defibrillate a conscious patient with a pulse. Follow electrical safety and infection-control practices, including hand hygiene.
Pacemakers and documentation
Identify pacing spikes and confirm capture and sensing; know that a magnet may change pacing mode. Document the rhythm, rate, patient symptoms, interventions, and notifications.
Worked example
The monitor alarms "ventricular fibrillation," but the patient is awake, talking, and has a radial pulse of 78. Assess the patient first; the tracing is almost certainly artifact from brushing teeth or a loose electrode. Confirm with another lead and a 12-lead ECG, correct the electrode, and document the event without delivering a shock.
Traps
- Treating the monitor rather than the patient.
- Silencing or widening alarms instead of correcting the cause.
- Placing electrodes over bone, incisions, or areas of diaphoresis.
- Assuming a pulseless rhythm from the monitor without a check.
- Failing to document the rhythm, symptoms, and escalation.