Correct Answer: D

Rationale: Hypokalemia is a common complication of diabetes insipidus due to excessive urination and the resultant electrolyte imbalance.

Correct Answer: B

Rationale: Phenytoin should be taken consistently, as missing doses can increase the risk of seizures. Additionally, clients should be aware of drug interactions, such as with antacids, which can reduce the absorption of phenytoin.

Correct Answer: D

Rationale: An elevated INR in clients taking warfarin increases the risk of bleeding. The nurse should notify the healthcare provider immediately and hold the next dose of warfarin to prevent complications.

Correct Answer: D

Rationale: Tetanus causes severe muscle spasms and sensitivity to stimuli, so minimizing stimuli like light, sound, and touch can help prevent painful spasms. Monitoring vital signs and administering antibiotics are important but managing stimuli is crucial for the child's comfort and safety.

Correct Answer: B

Rationale: An intradermal injection for a tuberculosis skin test should be administered using a 27-gauge needle at a 15-degree angle. This technique ensures that the medication is delivered into the dermis layer of the skin.