A nurse on a telemetry unit is assessing a client who is receiving continuous cardiac monitoring. The client's heart rate is 69/min and the PR interval is 0.24 seconds. The nurse should interpret this finding as which of the following cardiac rhythms?
Atrial fibrillation
First-degree AV block
Premature ventricular contraction
Sinus bradycardia
The Correct Answer is B
The correct answer is B.
Choice A reason: Atrial fibrillation is characterized by a rapid, irregular heartbeat and an absence of distinct P waves on the ECG, which is not indicated by the information provided.
Choice B reason: First-degree AV block is indicated by a prolonged PR interval without affecting the overall heart rate, aligning with the client’s PR interval of 0.24 seconds.
Choice C reason: Premature ventricular contraction would show an abnormal QRS complex on the ECG, which is not mentioned in the scenario.
Choice D reason: Sinus bradycardia is defined by a heart rate less than 60 bpm, which does not apply here as the client’s heart rate is 69/min, within the normal range of 60-100 bpm.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
The correct answer is choice A. Educating clients about contraindications to specific immunizations.
This is an example of tertiary prevention, which aims to reduce the complications and disability from a disease or condition. Tertiary prevention for HIV includes providing education, counseling, medication adherence, symptom management, and palliative care.
Choice B. Using an electronic messaging system to remind clients when to take medications is not a correct answer.
This is an example of secondary prevention, which aims to detect and treat a disease or condition early. Secondary prevention for HIV includes screening, diagnosis, antiretroviral therapy, and viral load monitoring.
Choice C. Providing clients with information about the benefits of exercise is not a correct answer.
This is an example of primary prevention, which aims to prevent a disease or condition from occurring. Primary prevention for HIV includes promoting safer sex, providing condoms, preventing mother-to-child transmission, and providing pre-exposure prophylaxis.
Choice D. Helping clients understand health screenings covered by their insurance plans is not a correct answer. This is also an example of secondary prevention, as it involves screening and diagnosis of a disease or condition.
Correct Answer is B
Explanation
B) I can visit my nephew who has chickenpox 5 days after the sores have crusted.
This statement indicates an understanding of infection prevention because it demonstrates knowledge about the contagious period of chickenpox. Visiting someone with chickenpox after the sores have crusted is a safe practice, as the person is no longer contagious.
The other options represent misconceptions about infection prevention:
A) Taking antibiotics for a viral infection is not effective, as antibiotics are used to treat bacterial infections, not viruses.
C) This statement is identical to option B and is incorrect.
D) Cleaning a cat's litter box during pregnancy is generally not recommended due to the risk of toxoplasmosis, a parasitic infection that can be transmitted through cat feces. Pregnant individuals are advised to have someone else handle cat litter or to use gloves and wash their hands thoroughly if they must do it themselves.
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