Nursing Elites

1. A nurse in the healthcare provider's office is checking the Babinski reflex in a 3-month-old infant. The nurse determines that the infant's response is normal if which finding is noted?

• A. The fingers curl tightly, and the toes curl forward.
• B. The toes flare, and the big toe is dorsiflexed.
• C. There is extension of the extremities on the side to which the head is turned, with flexion on the opposite side.
• D. The infant turns to the side that is touched.

Correct answer: B

Rationale: To elicit the Babinski reflex, the nurse strokes the lateral sole of the foot from the heel to across the base of the toes. In the expected response, the toes flare, and the big toe dorsiflexes. The Babinski reflex disappears at 12 months of age. Turning to the side that is touched is the expected response when the rooting reflex is elicited. Tight curling of the fingers and forward curling of the toes is the expected response when the grasp reflex (palmar and plantar) is elicited. Extension of the extremities on the side to which the head is turned with flexion on the opposite side is the expected response when the tonic neck reflex is elicited.

2. A healthcare provider is preparing to perform a Rinne test on a client who complains of hearing loss. In which area does the healthcare provider first place an activated tuning fork?

• A. On the client's teeth
• B. On the client's forehead
• C. On the client's mastoid bone
• D. On the midline of the client's skull

Correct answer: C

Rationale: In the Rinne test, the base of an activated tuning fork is held first against the mastoid bone, behind the ear, and then in front of the ear canal (0.5 to 2 inches). When the client no longer perceives the sound behind the ear, the fork is moved in front of the ear canal until the client indicates that the sound can no longer be heard. The client reports whether the sound from the tuning fork is louder behind the ear (on the mastoid bone) or in front of the ear canal. Placing the tuning fork on the teeth (Choice A), forehead (Choice B), or the midline of the skull (Choice D) is not part of the Rinne test procedure. Therefore, the correct answer is to first place the activated tuning fork on the client's mastoid bone.

3. A nurse assisting with data collection plans to perform the Romberg test. After describing the test to the client, the nurse tells the client that it will help reveal which disorder?

• A. Loss of hearing acuity
• B. A problem with balance
• C. A problem with distant hearing
• D. A problem discriminating high-pitched and low-pitched sounds

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.

4. The nurse is teaching parents of a newborn about feeding their infant. Which of the following instructions should the nurse include?

• A. Use the defrost setting on microwave ovens to warm bottles.
• B. When refrigerating formula, discard partially used bottles after 24 hours.
• C. When using formula concentrate, mix one part water and one part concentrate.
• D. When using powdered formula, mix two parts water and one part powder.

Correct answer: A

Rationale: The correct answer is to use the defrost setting on microwave ovens to warm bottles. It is essential for parents to be cautious when warming bottles in a microwave oven to prevent superheating of the milk. Choosing the defrost setting and checking the formula temperature before giving it to the baby helps avoid burns. Discarding partially used bottles after 24 hours when refrigerating formula is crucial as it reduces the risk of harmful bacterial growth. Mixing formula concentrate with water in a 1:1 ratio of one part concentrate to one part water ensures proper dilution of the formula. On the other hand, powdered formula should be mixed following the package instructions, typically using two parts water to one part powder. This accurate mixing ratio provides the necessary balance of nutrients for the baby. Adding fresh formula to partially used bottles can introduce pathogens that may harm the infant, underscoring the importance of discarding partially used bottles and preparing formula correctly. Therefore, options B, C, and D are incorrect as they do not address the safe and proper ways to feed a newborn effectively.

5. A nurse is preparing to listen to the apical heart rate in the area of the mitral valve in an adult client. The nurse should place the stethoscope on which part of the client's chest?

• A. Second left interspace
• B. Second right interspace
• C. Left lower sternal border
• D. Fifth left interspace at the midclavicular line

Correct answer: D

Rationale: The correct placement for auscultating the apical heart rate in the area of the mitral valve is the fifth left interspace at the midclavicular line. Placing the stethoscope in the second left interspace would be to listen to the pulmonic valve, the second right interspace is for the aortic valve, and the left lower sternal border is for the tricuspid valve.

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