A patient had a pneumonectomy to the right lung performed 48 hours ago. Which of the following conditions most likely exists?

Correct Answer: A

Rationale: After a pneumonectomy, where a lung is surgically removed, there will be a decrease in breath sound volume on the affected side due to reduced airflow. This reduction in breath sound volume is expected as there is less lung tissue to produce sound. Choices B, C, and D are incorrect. Elevated tidal volume and respiratory capacity are not expected after a pneumonectomy, and wheezing is more commonly associated with conditions like asthma or bronchitis, not a recent pneumonectomy.

Correct Answer: A

Rationale: Electrolytes are distributed unequally between intracellular and extracellular fluids. Sodium concentration is higher in extracellular fluid, while potassium concentration is higher in intracellular fluid. Therefore, the correct answer is 'There is a greater concentration of sodium in extracellular fluid and potassium in intracellular fluid.' Choices B, C, and D are incorrect because they do not accurately describe the typical distribution of sodium and potassium between intracellular and extracellular fluid.

Correct Answer: C

Rationale: A colostomy is an opening between the colon and abdominal wall. An ileostomy is an opening between the ileum and abdominal wall, not the colon. Jejunostomy is an opening between the jejunum and abdominal wall, and cecostomy is an opening into the cecum. The term 'colostomy' specifically refers to the surgical procedure where a part of the colon is brought through the abdominal wall to create a stoma, allowing feces to leave the body. Therefore, the correct answer is colostomy as it accurately describes the opening between the colon and the abdominal wall, distinct from the other options.

Correct Answer: A

Rationale: The correct answer is 'vascular perfusion of the tissue or organ.' Drug distribution is primarily determined by how well the circulatory system delivers the drug to various tissues and organs. Adequate perfusion ensures proper distribution of the drug throughout the body. While the salt form (choice B), drug interactions (choice C), and steady state (choice D) can influence drug efficacy and metabolism, they are not as crucial as vascular perfusion for the initial distribution of a drug.

Correct Answer: B

Rationale: For a 93-year-old female with Alzheimer's Disease exhibiting signs of increased confusion and limited stability with gait, recommending family members to bring pictures to the patient's room is the most appropriate course of action. Visual stimulation in the form of pictures may help decrease signs of confusion and provide comfort to the patient. Option A is incorrect as isolating the patient in her room at all times may worsen her condition by further limiting stimulation and interaction. Option C is incorrect as speech therapy may not directly address the current issues of confusion and gait instability. Option D is incorrect as pushing a wheelchair may not be safe for the patient if she is refusing to use it, potentially leading to falls or further distress.