Correct Answer: B

Rationale: Clear fluid draining from the ear can indicate cerebrospinal fluid leakage, which is a serious concern after a head injury. This leakage can signify a skull fracture or damage to the meninges, potentially leading to infection.
Therefore, it should be reported immediately for further evaluation and management.

Choices A, C, and D are typical findings after head trauma and are not as urgent as the presence of clear fluid draining from the ear.

Correct Answer: A

Rationale: Corrected
Rationale: Bradycardia is a common sign of digoxin toxicity. Digoxin, a medication used to treat heart failure, works by slowing down the heart rate and increasing the force of heart contractions. Excessive levels of digoxin can lead to toxicity, causing bradycardia (slow heart rate), among other symptoms. Tachycardia (fast heart rate) and hypotension (low blood pressure) are not typically associated with digoxin toxicity. Increased appetite is not a recognized sign of digoxin toxicity; instead, gastrointestinal symptoms like nausea, vomiting, and anorexia are more common.

Correct Answer: B

Rationale: Increased appetite may indicate that the client is experiencing symptoms of hyperthyroidism due to an excessive dose of levothyroxine. This finding suggests a need for a dosage adjustment to prevent potential complications. Tremors are more commonly associated with hyperthyroidism, not necessarily indicating a need for dosage adjustment. Bradycardia and diarrhea are not typical signs of an incorrect levothyroxine dosage and would not directly warrant a need for adjustment.

Correct Answer: C

Rationale: The correct solution to maintain fluid and electrolyte balance during NG tube irrigation is 0.9% sodium chloride. This solution is isotonic and helps prevent electrolyte imbalances. Using tap water or sterile water can lead to electrolyte disturbances due to their hypotonic nature, while 0.45% sodium chloride is hypotonic and may cause further imbalances in the client's electrolyte levels.

Correct Answer: B

Rationale: The correct answer is to keep the head of the bed at 30 degrees. This position helps reduce the risk of aspiration and improves ventilation. Suctioning the airway every hour may lead to mucosal damage and increase the risk of infection. Changing the ventilator tubing every day is not necessary unless there are specific indications to do so, as it can increase the risk of contamination and infection. Administering a bronchodilator every 2 hours is not a standard practice and should be done based on the client's individualized treatment plan.