The nurse is having difficulty hearing his patient's apical pulse with his stethoscope. Which action will help the nurse hear the heartbeat more clearly?
Positioning the bell very lightly over the patient's sternum
Placing the diaphragm firmly against the patient's skin
Utilizing a stethoscope with the longest possible tubing
Making sure that the earpieces fit loosely in the nurse's ear canals
The Correct Answer is B
A. Positioning the bell very lightly over the patient's sternum. The bell is best for low-pitched sounds like murmurs, but heartbeats (especially S1 and S2) are better heard with the diaphragm over the apex of the heart, not the sternum.
B. Placing the diaphragm firmly against the patient's skin. The diaphragm is designed to pick up high-pitched sounds like the normal S1 and S2 heart sounds. Pressing firmly helps eliminate external noise and improves sound clarity.
C. Utilizing a stethoscope with the longest possible tubing. Longer tubing can reduce sound transmission quality. Shorter tubing (about 14-18 inches) provides clearer sound.
D. Making sure that the earpieces fit loosely in the nurse's ear canals. Earpieces should fit snugly, not loosely, to ensure optimal sound conduction and block external noise.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. Body temperature follows a circadian rhythm, typically being lowest in the early morning (around 4–6 AM) and peaking in the late afternoon or evening.
B. Stress activates the sympathetic nervous system, which increases metabolic activity and raises body temperature rather than lowering it.
C. Physical activity generates heat, leading to an increase in body temperature, not a decrease.
D. While some surgical preparations involve cooling the patient, body temperature is not naturally lower before surgery. Instead, preoperative anxiety may even cause a slight increase in temperature.
Correct Answer is ["1.5"]
Explanation
Calculation:
Volume to administer = Dose ordered/ Dose available
Given:
- Ordered dose = 75 mg
- Available concentration = 50 mg/mL
Volume = 75mg/ (50mg/mL)
= 1.5mL
Thus, the nurse will administer 1.5 mL.
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