Correct Answer: B

Rationale: The Romberg test is a balance assessment that evaluates cerebellar function. During the test, the client stands with feet together and eyes closed, aiming to maintain balance for about 20 seconds. This test helps identify issues related to balance and proprioception, not hearing acuity or sound discrimination. Choices C and D are incorrect as the Romberg test focuses on balance, not distant hearing or sound discrimination.

Correct Answer: B

Rationale: The normal respiratory rate of a newborn infant is 30 to 60 breaths/min, with an average of 40. Since the infant's respiratory rate falls within the normal range, the most appropriate action for the nurse is to document the findings. Contacting the registered nurse, placing the infant in an oxygen tent, or wrapping an extra blanket around the infant are unnecessary actions as the respiratory rate is normal. Documenting the findings is important to provide a record of the assessment and serve as a baseline for future comparisons if needed.

Correct Answer: D

Rationale: Amniotic fluid should be clear and may include bits of vernix, the creamy white fetal skin lubricant. Therefore, the nurse would most appropriately document the findings. Checking the client's temperature, reporting the findings to the nurse-midwife, and obtaining a sample of the amniotic fluid for laboratory analysis are not necessary in this situation. Cloudy, yellow, or foul-smelling amniotic fluid suggests infection, while green fluid indicates that the fetus passed meconium before birth. If abnormalities are noted, the nurse should notify the nurse-midwife.

Correct Answer: B

Rationale: The correct answer is that the client may need to drink fluids before the test and may not void until the test has been completed. For a transabdominal ultrasound, the woman is positioned on her back with her head elevated and turned slightly to one side to prevent supine hypotension. A wedge or rolled blanket is placed under one hip to help her maintain this position comfortably. If a full bladder is necessary, the woman is instructed to drink several glasses of clear fluid 1 hour before the test and told that she should not void until the test has been completed. Warm mineral oil or transmission gel is spread over her abdomen, and the sonographer slowly moves a transducer over the abdomen to obtain a picture. The procedure typically takes 10 to 30 minutes, making choice A incorrect. Choice C is incorrect because a probe is not inserted into the vagina for a transabdominal ultrasound. Choice D is incorrect because the woman is positioned on her back with her head elevated and turned slightly to one side, not specifically on her back.

Correct Answer: D

Rationale: To test the cochlear portion of the acoustic nerve (cranial nerve VIII), the nurse should have the client close their eyes and indicate when a ticking watch is heard as the nurse moves the watch closer to the client's ear. This action assesses the client's ability to perceive auditory stimuli, as the cochlear portion of the acoustic nerve is responsible for hearing. Choices A, B, and C are incorrect. Asking the client to raise their eyebrows to check for symmetry is a method to test the facial nerve (cranial nerve VII). Asking the client to clench their teeth and palpating the masseter muscles tests the motor component of the trigeminal nerve. Having the client identify light and sharp touch on both sides of the face is a way to test the sensory component of the trigeminal nerve (cranial nerve V).