NCLEX-PN
Best NCLEX Next Gen Prep
1. 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.
2. What type of immunity do vaccines provide?
- A. active
- B. passive
- C. transplacental
- D. active and passive
Correct answer: A
Rationale: Vaccines provide active immunity by stimulating the immune system to produce antibodies against specific pathogens. Choice B, passive immunity, is acquired from ready-made antibodies, not through vaccination. Choice C, transplacental immunity, is a form of passive immunity transferred from mother to infant, not acquired through vaccines. Therefore, the correct answer is active immunity.
3. A nurse is preparing a female client for a rectal examination. Into which position does the nurse assist the client?
- A. Supine
- B. Standing
- C. Lithotomy
- D. Left lateral
Correct answer: D
Rationale: For a rectal examination in a female client, the nurse should assist the client into the left lateral position. This position allows easier access to the rectal area, facilitating the examination. The lithotomy position is used for examining the genitalia and rectum in females, not solely for a rectal examination. The standing position is not appropriate for a rectal examination as it does not provide the necessary access. The supine position would hinder the effectiveness of a rectal examination as it does not optimize access to the rectal area.
4. A nurse notes that a client's physical examination record states that the client's eyes moved normally through the six cardinal fields of gaze. The nurse interprets this to mean that which aspect of eye function is normal?
- A. Near vision
- B. Central vision
- C. Peripheral vision
- D. Ocular movements
Correct answer: D
Rationale: The correct answer is 'Ocular movements.' Moving the eyes through the six cardinal fields of gaze evaluates the function of the eye muscles, such as the medial rectus muscle, superior rectus muscle, superior oblique muscle, lateral rectus muscle, inferior rectus muscle, and inferior oblique muscle. Normal movement in these fields indicates proper ocular movements. Near vision is assessed using a handheld vision screener, central vision with a Snellen chart, and peripheral vision through the confrontation test. Therefore, the evaluation of ocular movements through the six cardinal fields of gaze specifically assesses this aspect of eye function. Choices A, B, and C are incorrect as they pertain to different aspects of vision function that are evaluated using distinct assessment methods, not through the six cardinal fields of gaze.
5. Immediately after delivery, the nurse assesses the woman's uterine fundus. At what location does the nurse expect to be able to palpate the fundus?
- A. At the level of the umbilicus
- B. Two centimeters above the umbilicus
- C. Midway between the symphysis pubis and umbilicus
- D. In the pelvic cavity
Correct answer: C
Rationale: The correct answer is midway between the symphysis pubis and the umbilicus. Immediately after delivery, the uterus is about the size of a large grapefruit or softball. The fundus can be palpated at this location but then rises to a level just above the umbilicus before sinking to the level of the umbilicus, where it remains for about 24 hours. After 24 hours, the fundus starts descending gradually. By the 10th to 14th day, the fundus is in the pelvic cavity and cannot be palpated abdominally. Choices A and B are incorrect as the fundus is not initially at the level of the umbilicus or 2 centimeters above it. Choice D is also incorrect as the fundus does not remain in the pelvic cavity immediately after delivery.
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