Correct Answer: C

Rationale: Muscle rigidity and a sudden rise in temperature are indicative of malignant hyperthermia, a potential complication of succinylcholine. Dantrolene is the drug of choice to treat malignant hyperthermia as it acts on skeletal muscles to reduce metabolic activity and counteract the symptoms. Neostigmine (
Choice
A) is used to reverse the effects of non-depolarizing neuromuscular blocking agents, not for malignant hyperthermia. Naloxone (
Choice
B) is an opioid antagonist used for opioid overdose. Vecuronium (
Choice
D) is a non-depolarizing neuromuscular blocking agent and is not the appropriate medication for malignant hyperthermia.

Correct Answer: C

Rationale: Atenolol is a beta-blocker that works by slowing down the heart rate. An adverse effect of atenolol is bradycardia, characterized by a slower than normal heart rate. The nurse should instruct the client to monitor for signs of bradycardia, such as a slow heart rate, while taking atenolol.
Therefore, the correct answer is to monitor for bradycardia. Tachycardia (
Choice
A) is not an expected adverse effect of atenolol as it actually reduces heart rate. Hypoglycemia (
Choice
B) is not a typical adverse effect of atenolol. Hypertension (
Choice
D) is not an adverse effect of atenolol, as atenolol is commonly used to manage hypertension.

Correct Answer: B

Rationale: Enalapril, an ACE inhibitor, can cause hyperkalemia as an adverse effect due to decreased aldosterone levels, leading to potassium retention. Monitoring potassium levels is essential to prevent complications associated with hyperkalemia. Bradycardia (
Choice
A) is not a common adverse effect of Enalapril. Enalapril does not typically affect glucose levels, so hypoglycemia (
Choice
C) is not a common concern with this medication. Enalapril does not directly impact calcium levels, so hypocalcemia (
Choice
D) is not a typical adverse effect.

Correct Answer: C

Rationale: The correct answer is C. The healthcare professional should distend the veins using a blood pressure cuff to make the veins more visible and accessible for IV catheter insertion. This technique helps reduce the risk of overfilling the vein, which can lead to complications such as hematoma formation.

Choices A, B, and D are incorrect because while selecting the antecubital area is often appropriate for IV insertion in adults, the key action in this scenario is to distend the veins using a blood pressure cuff to facilitate the procedure.

Correct Answer: D

Rationale: The correct answer is to advise the client to limit aerobic activity in hot weather. Aerobic activity in hot weather can lead to excessive sweating, potentially causing sodium and water depletion, which can increase the risk of Lithium toxicity. It is important for clients taking Lithium to maintain adequate hydration and sodium levels to prevent toxicity.

Choices A, B, and C are incorrect. Avoiding acetaminophen for headaches is not directly related to Lithium toxicity. Restricting intake of foods rich in sodium is not recommended because adequate sodium levels are necessary to prevent Lithium toxicity. Decreasing fluid intake to less than 1,500 mL daily is also not advisable as adequate hydration is important to prevent Lithium toxicity.