H/P

Four hours after her arrival to the emergency department, the patient remains in second-degree type II heart block and her vital signs are stable. She is transferred to a telemetry unit to prepare for insertion of a permanent pacemaker later in the day. When she gets out of bed to use the restroom, she felt faint and had to sit on the floor. The nurse finds her sitting on the floor beside the commode; the patient is awake but somewhat confused. The patient is assisted back to bed. The nurse notes that the ECG monitor shows that the patient's heart rate is at 40 beats/minute and she is now in third degree heart block. The Rapid Response team is called, and preparations are made for the immediate application of a transcutaneous pacemaker (TCP).
Which nursing actions should be included in the plan of care for the patient (Select All that Apply.)

Prepare to administer epinephrine

Monitor vital signs and ECG

Reassure the patient that the Transcutaneous Pacemaker is temporary

Prepare to administer atropine

Place both transcutaneous pacemaker pads on the chest over the heart

Provide analgesia as needed after the transcutaneous pacemaker is placed

Answer and Explanation

Correct Answer : B,C,D,E,F

B. Continuous monitoring of vital signs, including blood pressure, heart rate, respiratory rate, and oxygen saturation, is essential for assessing the patient's hemodynamic status and response to treatment.

Additionally, continuous electrocardiographic (ECG) monitoring allows for real-time assessment of cardiac rhythm and conduction abnormalities.

C. This is an important nursing action to provide comfort and reduce anxiety for the patient. Transcutaneous pacing is often used as a temporary measure to stabilize heart rate and cardiac output until more definitive treatment, such as insertion of a permanent pacemaker, can be performed.

D. Atropine is another medication commonly used in ACLS protocols for symptomatic bradycardia and heart block. It acts to increase heart rate by blocking vagal tone. However, its effectiveness in third- degree heart block may be limited, and transcutaneous pacing is often the preferred intervention in this situation.

E. Correct placement of transcutaneous pacemaker pads is crucial for effective pacing. The pads should be placed on the chest over the heart to deliver electrical impulses and stimulate myocardial contraction. Proper placement ensures optimal pacing effectiveness and patient safety.

F. This nursing action addresses the patient's comfort and pain management following the placement of the transcutaneous pacemaker. The procedure may cause discomfort or pain, and appropriate analgesia should be provided to alleviate any discomfort and promote patient comfort.

A. Epinephrine is a medication commonly used in advanced cardiac life support (ACLS) protocols for bradycardia and heart block. In this scenario, the patient's heart rate has decreased to 40 beats/minute, indicating symptomatic bradycardia and potential hemodynamic instability. Epinephrine may be administered to increase heart rate and improve cardiac output.

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Correct Answer is C

Explanation

C. Hypovolemia, or low blood volume, can lead to decreased venous return to the heart and reduced filling pressures. Consequently, CVP may decrease in hypovolemic states. Low CVP may indicate inadequate preload and reduced cardiac output, which are characteristic of hypovolemia.

A. Left ventricular failure typically results in elevated filling pressures rather than low CVP. In left ventricular failure, blood backs up into the pulmonary circulation, leading to increased pulmonary venous pressure and potentially elevated pulmonary capillary wedge pressure (PCWP), which is a surrogate marker for left atrial pressure. This elevated pressure is reflected in the CVP as well, resulting in increased CVP rather than low CVP.

B. Fluid overload typically results in elevated filling pressures and increased CVP rather than low CVP. Excess fluid volume increases venous return to the heart, leading to increased pressure within the central veins and elevated CVP.

D. Intracardiac shunts may cause alterations in cardiac pressures, but they typically do not result in consistently low CVP. Depending on the type and severity of the shunt, the direction and magnitude of pressure changes may vary. However, in the absence of other pathophysiological factors, intracardiac shunts are less likely to cause consistently low CVP.

A. Insertion of a pulmonary artery catheter B. Obtaining a ventilation-perfusion scan C. Drawing blood for arterial blood gases D. Positioning the patient for a chest x-ray

Correct Answer is A

Explanation

A. The insertion of a pulmonary artery catheter can help in assessing hemodynamic parameters and distinguishing between these two conditions. It provides direct measurement of pulmonary artery pressures, which can be elevated in the case of heart failure.

B. A ventilation-perfusion (V/Q) scan is used to evaluate ventilation and perfusion in the lungs. While it can help identify areas of ventilation-perfusion mismatch, it may not be the most appropriate initial test for distinguishing between ARDS and pulmonary edema.

C. Drawing blood for arterial blood gases is also a critical step as it helps in assessing the severity of hypoxemia and respiratory failure.

D. A chest x-ray can show the presence of bilateral opacities, which are indicative of ARDS when cardiac failure or fluid overload is not the primary cause. However, transthoracic echocardiography (TTE) is often performed to seek evidence of cardiac dysfunction when cardiogenic pulmonary edema cannot be excluded by clinical evaluation, laboratory findings, or imaging.

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Naxlex Comprehensive Predictor Exams

A nurse is evaluating the central venous pressure (CVP) of a client who has sustained multiple traumas. Which of the following interpretations of a low CVP pressure should the nurse make?

Correct Answer is C

Explanation

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Correct Answer is A

Explanation

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