Correct Answer: A

Rationale: The correct answer is A: 'Drooping eyelids.' Ptosis, characterized by drooping of the eyelid, is a classic symptom seen in myasthenia gravis. This occurs due to muscle weakness, particularly in the muscles that control eyelid movement. Choice B, 'Unequal pupils,' is not associated with ptosis and may indicate other neurological issues. Choice C, 'Facial twitching,' is not a typical sign of ptosis but could be related to other conditions like nerve irritation. Choice D, 'Facial droop,' is more commonly seen in conditions affecting the facial nerve, like Bell's palsy, and is not a characteristic feature of myasthenia gravis.

Correct Answer: A

Rationale: When educating a patient with hypertension about lifestyle modifications, reducing sodium intake is crucial as excess sodium can contribute to high blood pressure. While increasing physical activity is beneficial for overall health, it is not the primary lifestyle modification specifically targeted at hypertension. Quitting smoking and avoiding alcohol are important for general health but are not the first-line lifestyle modifications recommended for hypertension. Therefore, the correct answer is to reduce sodium intake.

Correct Answer: A

Rationale: The correct answer is A. In older adults, key signs of a UTI often include confusion and increased temperature. Confusion is a common symptom in the elderly when they have a UTI, and an increase in body temperature can indicate an infection. Choices B, C, and D are incorrect because while painful urination and frequent urination are common UTI symptoms in general, they may not be as prominent in older adults. Dizziness, headache, back pain, and fever can be associated with other conditions but are not typically key signs of a UTI in older adults.

Correct Answer: A

Rationale: The correct answer is to check for air leaks in the tubing every 4 hours when caring for a client with a chest tube. This responsibility is crucial because it ensures proper chest tube function and helps prevent complications such as pneumothorax or hemothorax. Clamping the chest tube (Choice B) can lead to serious issues by causing a tension pneumothorax. Encouraging deep breathing and coughing (Choice C) is important for respiratory hygiene but is not directly related to chest tube care. Keeping the client in a high Fowler's position (Choice D) may be beneficial for some conditions but is not specific to chest tube management.

Correct Answer: B

Rationale: The priority when managing a client with a chest tube postoperatively is to check for air leaks and ensure the proper functioning of the chest tube. This is crucial to prevent complications such as pneumothorax or hemothorax. Clamping the chest tube intermittently can lead to a buildup of pressure in the pleural space and should not be done without a specific medical indication. Encouraging deep breathing and coughing helps with lung expansion but is not the priority over ensuring the chest tube's proper function. Encouraging frequent coughing may increase the risk of dislodging the chest tube or causing complications.