A patient's heart rate increased from 94 to 164 beats/min. What will the nurse expect as a result?
Decrease in hemoglobin level
Increase in diastolic filling time
Increase in stroke volume
Decrease in cardiac output
The Correct Answer is D
A. An increase in heart rate does not directly affect hemoglobin levels; this option is incorrect.
B. A higher heart rate decreases diastolic filling time, as there is less time for the heart to fill between beats, which can lead to reduced stroke volume.
C. An increased heart rate does not inherently increase stroke volume; in fact, at very high rates, stroke volume can decrease due to reduced filling time.
D. The significant increase in heart rate to 164 beats/min can lead to decreased cardiac output due to compromised diastolic filling and reduced stroke volume.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. A moderate-carbohydrate diet is recommended because carbohydrates increase CO₂ production during metabolism, and limiting excessive carbohydrate intake can help manage CO₂ retention in patients with respiratory issues.
B. Low-caffeine is not directly related to CO₂ retention and does not influence carbon dioxide levels in the body.
C. High-carbohydrate intake can exacerbate CO₂ production, worsening retention issues in patients with compromised lung function.
D. High-caffeine intake is not related to CO₂ retention management and would not impact CO₂ levels in the respiratory system.
Correct Answer is C
Explanation
A. Competent nurses have typically worked in a specific area for 2-3 years, developing an understanding of patient care specific to that field.
B. Proficient nurses have advanced understanding and experience, allowing them to see care situations as whole parts rather than in separate steps.
C. In a new specialty area, the nurse is considered a novice, as they lack experience and expertise in obstetrics despite previous nursing experience.
D. Advanced beginners have some experience but still need support; however, this would apply only if the nurse had some previous obstetric experience.
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