A nurse is reviewing a client's cardiac rhythm strips and notes a constant P-R interval of
0.35 seconds. Which of the following dysrhythmias is the client displaying?
Premature atrial complexes
Complete heart block
Atrial fibrillation
First-degree atrioventricular block
The Correct Answer is D
A. Incorrect. Premature atrial complexes do not typically affect the P-R interval. They are characterized by an early P-wave followed by a QRS complex.
B. Incorrect. Complete heart block is characterized by a dissociation between the P-waves and QRS complexes, resulting in no relationship between atrial and ventricular activity.
C. Incorrect. Atrial fibrillation is characterized by chaotic and irregular atrial activity without distinct P-waves, making the P-R interval irrelevant.
D. Correct. In first-degree atrioventricular block, the P-R interval is prolonged beyond the normal range of 0.12-0.20 seconds. A constant P-R interval of 0.35 seconds indicates a first- degree atrioventricular block.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Based on the client's sudden right-sided numbness, weakness of the arm and leg, and distinct right-sided facial droop, the nurse should suspect a possible stroke and prioritize immediate interventions. After reporting the findings to the healthcare provider and receiving prescriptions, the nurse should implement the following intervention:
Notify the stroke team to assist with acute assessment and management. A stroke is a medical emergency that requires urgent intervention and specialized care. The stroke team is trained to quickly assess and manage stroke patients, including performing necessary diagnostic tests and initiating appropriate treatment. In this case, a STAT computerized tomography (CT) scan of the head has been ordered, indicating the need to evaluate the client's brain for possible ischemic or hemorrhagic stroke.
While keeping the bed in the lowest position and initiating seizure and fall precautions may be important considerations for stroke patients, notifying the stroke team takes precedence as they are specifically trained to manage acute stroke cases.
Administering aspirin to prevent further clot formation and platelet clumping is not appropriate without further assessment and confirmation of the type of stroke.
Additionally, testing for a swallowing reflex and performing communication deficit assessments can be important components of the overall stroke management plan, but they should be carried out by the stroke team or as directed by the healthcare provider.
Correct Answer is C
Explanation
Choice A rationale:
Overweight is not applicable in this situation as the client's BMI indicates a weight status below the normal range.
Choice B rationale:
Obesity class 1 is not applicable in this situation as the client's BMI indicates a weight status below the normal range.
Choice C rationale:
Underweight is the correct choice. A BMI of less than 18.5 is considered underweight according to the World Health Organization (WHO) classification. A BMI of 17.2 falls below this threshold, indicating that the client is underweight. This is a cause for concern, as individuals with Crohn's disease often struggle with maintaining a healthy weight due to malabsorption issues and reduced appetite.
Choice D rationale:
Healthy weight is not applicable in this situation as the client's BMI is below the normal range, indicating an underweight status.
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