A nurse entering a patient's room assesses the patient to be non-responsive. The cardiac rhythm looks to be normal sinus rhythm but the nurse does not feel a pulse. What is the correct term for this rhythm?

Ventricular tachycardia.

Pulseless electrical activity.

Sudden cardiac death.

Premature ventricular contractions (PVC).

Answer and Explanation

The Correct Answer is B

Choice A rationale

Ventricular tachycardia is characterized by a rapid, wide QRS complex rhythm originating from the ventricles. While it can occur without a pulse, the prompt describes a normal sinus rhythm on the monitor. Ventricular tachycardia would show a distinct lack of P waves and a heart rate typically above 100 beats per minute. Because the monitor shows a normal pattern but the patient is unresponsive with no pulse, this diagnosis is scientifically incorrect.

Choice B rationale

Pulseless electrical activity occurs when the heart's electrical conduction system functions in a relatively normal organized fashion, but the myocardium fails to produce a mechanical contraction or sufficient stroke volume to generate a palpable pulse. This results in an organized rhythm like sinus rhythm on the ECG monitor despite the clinical state of cardiac arrest. It requires immediate CPR and identification of reversible causes such as hypovolemia, hypoxia, or electrolytes imbalances to restore mechanical function.

Choice C rationale

Sudden cardiac death is a broad clinical term used to describe an unexpected natural death due to cardiac causes, usually within one hour of symptom onset. While the patient in the scenario is in cardiac arrest, the term does not describe the specific cardiac rhythm observed on the monitor. It is a clinical outcome rather than a rhythmic classification. The nurse must identify the specific rhythm to guide the advanced cardiovascular life support interventions required.

Choice D rationale

Premature ventricular contractions are single ectopic beats that interrupt the regular underlying rhythm and are usually followed by a compensatory pause. They do not typically cause a complete loss of pulse or unresponsiveness unless they occur so frequently that they transition into a more lethal arrhythmia. A rhythm that looks like normal sinus rhythm but lacks a pulse is a systemic failure of mechanical output, not a minor electrical irritability issue like PVCs.

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Correct Answer is A

Explanation

Choice A rationale

Following resuscitation from cardiac arrest, assessing the neurological status by checking the ability to follow commands is the priority. This determines the presence of anoxic brain injury and guides the decision for targeted temperature management. If a patient is unable to follow commands, induced hypothermia is indicated to protect cerebral function. This assessment takes precedence as it dictates immediate, time sensitive neuroprotective interventions that significantly impact the long term functional recovery and survival of the patient.

Choice B rationale

Assessing for chest pain is important in identifying an acute myocardial infarction as the underlying cause of the arrest. However, many post arrest patients are intubated, sedated, or have altered consciousness, making subjective pain reports unreliable. While an electrocardiogram would be performed to check for ST segment elevation, the immediate physiological priority post transfer is neurological assessment to determine the need for therapeutic hypothermia, which must be initiated rapidly to be effective for brain preservation.

Choice C rationale

Auscultating breath sounds is a vital part of the secondary assessment to ensure proper endotracheal tube placement and bilateral lung expansion. While airway and breathing are fundamental, in the immediate seconds following ICU transfer after successful resuscitation, the decision tree pivots toward neurological protection. Ensuring the ventilator is functioning is routine, but the specific ICU priority for "best outcome" centers on identifying candidates for specialized protocols like cooling to mitigate reperfusion injury in the brain.

Choice D rationale

Signs of shock, such as cool, clammy skin or delayed capillary refill, indicate poor systemic perfusion and low cardiac output. Hemodynamic monitoring via blood pressure and central venous pressure is standard in the post arrest period. However, hemodynamic stabilization usually occurs during the initial resuscitation phase. Once in the ICU, the focus shifts to the subtle assessment of neurologic recovery to determine if the patient requires advanced neuroprotective bundles to prevent permanent cognitive and motor deficits.

A. Administer a sedative and paralytic agent. B. Order a chest x-ray. C. Use an end-tidal CO2 detector. D. Auscultate for bilateral breath sounds. E. Obtain ABGs.

Correct Answer is ["B","C","D"]

Explanation

Choice A rationale

Administering sedative or paralytic agents is typically performed prior to or during the actual intubation process to facilitate tube passage and prevent airway trauma. Once the tube is inserted and the cuff is inflated, the priority shifts to verification of placement rather than further sedation. Giving these drugs after insertion does not provide any diagnostic data regarding whether the tube is in the trachea or the esophagus.

Choice B rationale

A chest x-ray is the definitive gold standard for confirming the depth of endotracheal tube placement. It ensures the distal tip of the tube is positioned approximately 2 to 5 cm above the carina. While other methods confirm the tube is in the trachea, the x-ray is essential to ensure it has not migrated into the right mainstem bronchus, which would cause unilateral lung expansion and potential collapse.

Choice C rationale

End-tidal carbon dioxide detection provides immediate physiological feedback that the tube is located within the respiratory tract. Since CO2 is a byproduct of alveolar gas exchange, its presence in exhaled air indicates the tube is in the trachea rather than the esophagus. A colorimetric changer or capnography waveform is a primary tool used immediately after intubation to rule out esophageal placement before further interventions are performed.

Choice D rationale

Auscultation is a critical immediate step to verify bilateral lung expansion and rule out unintentional esophageal or endobronchial intubation. The nurse should listen for equal breath sounds over the midaxillary lines and ensure there are no gurgling sounds over the epigastrium. Epigastric sounds suggest the tube is in the stomach. Breath sounds must be assessed early to ensure both lungs are being ventilated prior to securing the device.

Choice E rationale

Arterial blood gases are useful for evaluating the long-term effectiveness of ventilation and oxygenation after the patient is stabilized on a ventilator. However, they are not used for the initial confirmation of tube placement because the results take too long to obtain. Verification must be instantaneous using physical assessment and CO2 detection to prevent hypoxia. Normal pH is 7.35 to 7.45, and normal PaO2 is 80 to 100 mmHg.

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A nurse entering a patient's room assesses the patient to be non-responsive. The cardiac rhythm looks to be normal sinus rhythm but the nurse does not feel a pulse. What is the correct term for this rhythm?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A cardiac arrest patient has been resuscitated and immediately transferred to the ICU. What is the priority assessment by the ICU nurse for the best outcome?

Correct Answer is A

Explanation

The nurse is assisting with a patient being intubated at the bedside. After endotracheal tube insertion and the cuff inflation, what are the next appropriate actions to confirm placement before securing the airway? Select all that apply.

Correct Answer is ["B","C","D"]

Explanation

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