Correct Answer: B

Rationale: The correct answer is B: Urine output of 20 mL/hour. Urine output below 30 mL/hour is a sign of magnesium toxicity due to the risk of accumulation in the body. Choices A, C, and D are not indicative of magnesium toxicity. Elevated blood glucose, systolic blood pressure, and normal respiratory rate are not specific signs of magnesium toxicity.

Correct Answer: C

Rationale: The correct answer is C. The client with hypothyroidism who is stuporous should be assessed first as this may indicate a critical condition, possibly related to severe hypothyroidism. Stupor is a state of near-unconsciousness or insensibility, suggesting a decline in neurological function that requires immediate evaluation. Choices A, B, and D do not present with immediate life-threatening conditions that require urgent assessment. While chemotherapy, post-appendectomy complications, and burn care are important, they do not pose the same level of immediate risk as a stuporous client.

Correct Answer: D

Rationale: Withholding heparin IV infusion is the priority if there is a risk of complications such as bleeding, which must be evaluated before continuing treatment.

Correct Answer: B

Rationale: The correct answer is B: 'Monitor for diaphoresis.' Diaphoresis, which refers to excessive sweating, is a common symptom of hypoglycemia. It indicates a low blood sugar level and should prompt immediate treatment. Polyuria (excessive urination), abdominal pain, and thirst are not typically associated with hypoglycemia. Polyuria is more commonly linked to hyperglycemia, while abdominal pain and thirst are not specific symptoms of hypoglycemia.

Correct Answer: B

Rationale: The nurse should wear a dosimeter badge to monitor radiation exposure when caring for a client with a sealed radiation implant.