which of the following situations might warrant a laboratory magnesium level
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Nursing Elites

NCLEX-RN

Health Promotion and Maintenance NCLEX RN Questions

1. Which of the following situations might warrant a laboratory magnesium level?

Correct answer: C

Rationale: Ulcerative colitis can lead to symptoms such as abdominal pain, fever, diarrhea, and weight loss. This condition may impact the absorption of certain nutrients, including magnesium. Therefore, patients with chronic gastrointestinal conditions like ulcerative colitis should be screened for electrolyte imbalances related to impaired digestion. Hyperthyroidism, arthritis, and depression do not typically directly affect magnesium levels in the same way as gastrointestinal conditions like ulcerative colitis.

2. While caring for a client who has just come from surgery and is in the recovery room with an endotracheal tube in place, the nurse deflates the cuff on the tube and removes it. The client sits up in bed, grasps his throat, and begins to make wheezing sounds. Which of the following conditions is the most likely cause of this situation?

Correct answer: D

Rationale: After surgery, some clients may experience a laryngospasm during emergence from anesthesia. A laryngospasm can lead to the closure of the laryngeal opening due to spasm of the vocal cords. In this scenario, the client's symptoms of wheezing and throat grasping are indicative of a laryngospasm rather than choking on the tube, anxiety, or a normal response from anesthesia. The nurse should act promptly to open the airway to aid breathing and consider administering muscle relaxants as necessary.

3. The nurse practicing in a maternity setting recognizes that the postmature fetus is at risk due to:

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.

4. Which of the following white blood cells is the smallest and can be involved in humoral immunity?

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.

5. At a community health fair, the blood pressure of a 62-year-old client is 160/96 mmHg. The client states, "My blood pressure is usually much lower."? The nurse should tell the client to:

Correct answer: A

Rationale: The blood pressure reading of 160/96 mmHg is moderately high, indicating hypertension. Given that the client mentions their blood pressure is usually lower, there is concern for acute complications like a stroke. Therefore, an immediate reassessment of the blood pressure within the next 15 minutes is warranted to confirm the reading and take appropriate actions if necessary. Waiting for two months (Choice B) or a week (Choice D) could pose risks of delaying intervention. Seeing the healthcare provider immediately (Choice C) is a good option, but in this case, the urgency is not as high as to require immediate attention at the healthcare provider's office.

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