NCLEX-RN
NCLEX RN Exam Review Answers
1. The client is receiving an MAOI. Which foods should the nurse caution the client to avoid?
- A. Pork, spinach, and fresh oysters
- B. Milk, grapes, and meat tenderizers
- C. Cheese, beer, and products with chocolate
- D. Leafy green vegetables, fresh apples, and ice cream
Correct answer: C
Rationale: The correct answer is C. When a client is receiving a monoamine oxidase inhibitor (MAOI), they should avoid foods high in tyramine to prevent a hypertensive crisis. Cheese, beer, and products with chocolate are rich in tyramine and can interact with MAOIs, leading to a dangerous rise in blood pressure. Choices A, B, and D do not contain high levels of tyramine and are not typically restricted when taking MAOIs.
2. Which of the following white blood cells is the smallest and can be involved in humoral immunity?
- A. Lymphocyte
- B. Monocyte
- C. Basophil
- D. Erythrocyte
Correct answer: A
Rationale: The correct answer is 'Lymphocyte.' Lymphocytes are the smallest type of white blood cells and play a crucial role in humoral immunity by producing antibodies. Monocytes are actually the largest white blood cells and are involved in phagocytosis rather than humoral immunity. Basophils are a type of granulocyte involved in allergic reactions, and erythrocytes are red blood cells responsible for oxygen transport, not part of the immune system.
3. Which nursing intervention is most appropriate to maintain the patency of a client's nasogastric tube?
- A. Maintain a constant connection to low-intermittent suction
- B. Irrigate the tube as per physician's order
- C. Suction the mouth and nose every shift
- D. Perform a daily fecal occult blood sample
Correct answer: B
Rationale: The correct answer is to irrigate the tube as per physician's order. A client with a nasogastric tube is at risk of the tube kinking or clotting off, which can lead to complications such as abdominal distention or vomiting. To ensure the patency of the tube, the nurse should follow the physician's orders and facility policy to irrigate the tube with water or a solution as needed. Maintaining a constant connection to low-intermittent suction (Choice A) is not typically done to maintain tube patency. Suctioning the mouth and nose every shift (Choice C) is not directly related to maintaining nasogastric tube patency. Performing a daily fecal occult blood sample (Choice D) is unrelated to maintaining the patency of a nasogastric tube.
4. A client is discharged following hospitalization for congestive heart failure. The nurse teaching the family suggests they encourage the client to rest frequently in which of the following positions?
- A. High Fowler's
- B. Supine
- C. Left lateral
- D. Low Fowler's
Correct answer: A
Rationale: The correct answer is "High Fowler's" position. Sitting in a chair or resting in a bed in a high Fowler's position decreases the cardiac workload and facilitates breathing. This position helps reduce the work of breathing and promotes optimal lung expansion, making it easier for the client to breathe. Supine position (choice B) is lying flat on the back and may not be ideal for clients with congestive heart failure as it can increase pressure on the heart. Left lateral position (choice C) is commonly used for promoting circulation in clients with certain conditions but is not the most appropriate for congestive heart failure. Low Fowler's position (choice D) is not recommended as it does not provide the same benefits in terms of reducing cardiac workload and easing breathing as the high Fowler's position.
5. The nurse practicing in a maternity setting recognizes that the postmature fetus is at risk due to:
- A. Excessive fetal weight
- B. Low blood sugar levels
- C. Depletion of subcutaneous fat
- D. Progressive placental insufficiency
Correct answer: D
Rationale: A postmature or postterm pregnancy occurs when a pregnancy exceeds the typical term of 38 to 42 weeks. In this situation, the fetus is at risk due to progressive placental insufficiency. This occurs because the placenta loses its ability to function effectively after 42 weeks. The accumulation of calcium deposits in the placenta reduces blood perfusion, oxygen supply, and nutrient delivery to the fetus, leading to potential growth problems. Choices A, B, and C are incorrect because excessive fetal weight, low blood sugar levels, and depletion of subcutaneous fat are not the primary risks associated with postmature fetuses. The main concern lies in the compromised placental function and its impact on fetal well-being.
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