NCLEX-PN
Best NCLEX Next Gen Prep
1. The nurse is assessing the dental status of an 18-month-old child. How many teeth should the nurse expect to examine?
- A. 6
- B. 8
- C. 12
- D. 16
Correct answer: C
Rationale: An 18-month-old child should have approximately 12 teeth. Children typically start getting teeth around 6 months of age. By subtracting 6 from the number of months in the child's age, you can calculate the expected number of teeth. For an 18-month-old child, 18 - 6 = 12 teeth. Therefore, the correct answer is 12 teeth. Choices A, B, and D are incorrect because they do not align with the expected dental development in an 18-month-old child.
2. Which of the following physical findings indicates that an 11-12-month-old child is at risk for developmental dysplasia of the hip?
- A. refusal to walk
- B. not pulling to a standing position
- C. negative Trendelenburg sign
- D. negative Ortolani sign
Correct answer: B
Rationale: The correct answer is 'not pulling to a standing position.' An 11-12-month-old child not pulling to a standing position may be at risk for developmental dysplasia of the hip. By this age, children typically pull to a standing position, and failure to do so should raise concerns. Refusal to walk is a broader observation and not specific to hip dysplasia. The Trendelenburg sign indicates weakness of the gluteus medius muscle, not hip dysplasia. The Ortolani sign is used to detect congenital subluxation or dislocation of the hip, which is different from developmental dysplasia of the hip.
3. A client with an ileus is placed on intestinal tube suction. Which of the following electrolytes is lost with intestinal suction?
- A. calcium
- B. magnesium
- C. potassium
- D. sodium chloride
Correct answer: D
Rationale: The correct answer is sodium chloride. Duodenal intestinal fluid is rich in potassium (K+), sodium (Na+), and bicarbonate. When suctioning is used to remove excess fluids due to ileus, it results in the loss of sodium chloride (NaCl) leading to decreased sodium (Na+) levels. Choices A, B, and C are incorrect because calcium, magnesium, and potassium are not typically lost in significant amounts through intestinal tube suction in the context of treating ileus.
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. Which of the following physical findings indicates that an 11-12-month-old child is at risk for developmental dysplasia of the hip?
- A. refusal to walk
- B. not pulling to a standing position
- C. negative Trendelenburg sign
- D. negative Ortolani sign
Correct answer: B
Rationale: The correct answer is 'not pulling to a standing position.' If an 11-12-month-old child is unable to pull to a standing position, it can indicate a risk for developmental dysplasia of the hip. By 15 months of age, children should be walking, so delayed standing can be a red flag. The Trendelenburg sign is associated with gluteus medius muscle weakness, not hip dysplasia, making choice C incorrect. The Ortolani sign is used to detect congenital hip subluxation or dislocation, not developmental dysplasia, making choice D incorrect.
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