The nurse cares for a client with a heart rate of 52 beats per minute. How should the nurse interpret this finding?
The client has tachycardia.
The client has supraventricular tachycardia.
The client has a normal pulse rate.
The client has bradycardia.
The Correct Answer is D
A. Tachycardia refers to a heart rate that exceeds the normal adult range, typically greater than 100 beats per minute at rest. It can occur due to various conditions such as fever, pain, anxiety, hypovolemia, hyperthyroidism, or cardiac arrhythmias. In this case, the client’s heart rate is 52 bpm, which is well below the threshold for tachycardia, making this option incorrect.
B. Supraventricular tachycardia (SVT) is a type of rapid heart rhythm originating above the ventricles (atria or AV node) and is usually characterized by heart rates of 150–250 bpm. SVT often presents with palpitations, dizziness, shortness of breath, or chest discomfort. A heart rate of 52 bpm is far below the SVT range, so this option is also incorrect.
C. Normal adult pulse rate ranges from 60 to 100 beats per minute at rest. A heart rate of 52 bpm is below this normal range, so it cannot be classified as normal. While some healthy athletes may have resting bradycardia due to increased cardiac efficiency, in the general adult population, a rate below 60 bpm is considered abnormal.
D. Bradycardia is defined as a resting heart rate less than 60 bpm in adults. It may be asymptomatic or can lead to symptoms such as fatigue, dizziness, syncope, or hypotension if cardiac output is compromised. Causes can include high vagal tone (common in athletes), medications (beta-blockers, calcium channel blockers, digoxin), hypothyroidism, hypothermia, or heart block. In this case, a heart rate of 52 bpm meets the criteria for bradycardia, making this the correct answer.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. There is no evidence of inappropriate behavior by the UAP. The UAP accurately reported the vital signs. There is no indication of misconduct or negligence that would require reporting to a manager.
B. Although one value is abnormal, the nurse should not delegate reassessment of an abnormal finding back to the UAP. When abnormal data are reported, the registered nurse is responsible for validating and further assessing the finding personally. Re-delegating does not meet the RN’s accountability for clinical judgment.
C. A pulse oximetry reading of 91% on room air is below normal (normal is 95–100%), indicating mild hypoxemia. However, before initiating an intervention such as oxygen therapy, the nurse must first validate the abnormal finding. Pulse oximetry readings can be affected by poor probe placement, cold extremities, nail polish, motion, or equipment error. Immediate oxygen administration without reassessment is premature.
D. A pulse oximetry of 91% is abnormal and requires follow-up. The nurse’s first action should be to personally reassess the oxygen saturation to validate the accuracy of the reading. This includes checking probe placement, ensuring proper perfusion, and assessing the client’s respiratory status. Once validated, appropriate interventions such as oxygen therapy can be initiated if necessary.
Correct Answer is {"A":{"answers":"B"},"B":{"answers":"B"},"C":{"answers":"A"},"D":{"answers":"A"},"E":{"answers":"A"}}
Explanation
- Squinting during the visual acuity exam – Abnormal
Squinting may indicate visual impairment such as refractive errors (myopia, hyperopia, or astigmatism) or difficulty focusing. A normal response is being able to read the chart without compensatory behaviors. - Yellowing of the sclera – Abnormal
Yellow sclera indicates jaundice, which can result from liver dysfunction, hemolysis, or bile duct obstruction. Sclera should normally be white. - Reflection of light in the same spot on each eye – Normal
This demonstrates proper alignment of the eyes and normal corneal light reflex, indicating no strabismus or ocular misalignment. - Gaze fixed and steady – Normal
A fixed and steady gaze shows normal extraocular muscle function and cranial nerve integrity. Abnormal findings would include nystagmus or uncontrolled eye movements. - Clear conjunctiva – Normal
Normal conjunctiva should be pink and moist without redness, swelling, or discharge. Abnormal findings include pallor (anemia), redness (infection or irritation), or jaundice.
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