A nurse is assessing a client's ECG strip and notes an irregular heart rate of 98/min with no clear P waves. Which of the following cardiac dysrhythmias should the nurse document?
First-degree heart block
Atrial fibrillation
Complete heart block
Ventricular tachycardia
The Correct Answer is B
Rationale:
A. First-degree heart block: This rhythm shows a prolonged PR interval but maintains regular P waves before every QRS complex and a consistent rhythm. The presence of P waves and regularity rule out this option.
B. Atrial fibrillation: Atrial fibrillation is characterized by an irregularly irregular rhythm and absent or indistinct P waves due to disorganized atrial electrical activity. A heart rate of 98/min with no clear P waves fits the criteria for this dysrhythmia.
C. Complete heart block: Complete (third-degree) heart block features a complete dissociation between atrial and ventricular activity, with P waves and QRS complexes occurring independently. It typically presents with a bradycardic rhythm, not near 98/min.
D. Ventricular tachycardia: Ventricular tachycardia presents with a rapid, regular rhythm and wide QRS complexes. It usually lacks P waves but is typically much faster than 98/min, often ranging from 140 to 200 beats/min.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Rationale:
A. "I changed the floor plan of our home to accommodate my parent’s wheelchair.": This statement reflects proactive planning and adjustment to meet the needs of the client’s parents, indicating that the individual has accepted the caregiver role and is taking concrete steps to fulfill it effectively.
B. "I’m so stressed out that it makes it difficult for me to manage everything.": This expresses emotional overwhelm and difficulty coping, suggesting that the client is still struggling with the demands of caregiving and has not yet fully adjusted to or accepted the new role.
C. "At times, I get so frustrated with how to care for my parents.": While frustration is a normal part of caregiving, this statement reflects ongoing emotional conflict, which may suggest partial adaptation but not full acceptance of the caregiving role.
D. "I am learning to take care of my parents as I go.": This shows a willingness to adapt, but it suggests the client is still in the early stages of role transition. Acceptance involves not just learning but also implementing sustainable changes to accommodate the new responsibilities.
Correct Answer is C
Explanation
Rationale:
A. Administer vasopressin to the client: Vasopressin helps control variceal bleeding by constricting splanchnic blood vessels. However, it cannot be safely or effectively administered until reliable IV access is confirmed, making it a secondary priority.
B. Request blood from blood bank: While the client may need transfusions to correct hypovolemia and blood loss, requesting blood is not the most immediate step. Before transfusion or medication, the nurse must ensure a functional IV line is available.
C. Verify that the client has adequate IV access: The priority in any hemorrhagic shock situation is to secure IV access to allow for fluid resuscitation, medication administration, and blood transfusion. Without IV access, no other interventions can be effectively implemented.
D. Insert an indwelling urinary catheter: Monitoring urine output is important in assessing renal perfusion and fluid status. However, this action does not address the immediate circulatory needs of the client and can be done after resuscitative access is secured.
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