Correct Answer: D

Rationale: Clients with PKD commonly present with flank pain and increased abdominal girth due to abdominal distention caused by cysts. Bloody urine is also a common symptom due to tissue damage from PKD. Nocturia and dysuria are not typical manifestations of PKD. Constipation is not directly associated with PKD. Therefore, the correct choices are flank pain and increased abdominal girth, making option D the correct answer.

Correct Answer: C

Rationale: Doxycycline is a lipid-soluble tetracycline that is better absorbed when taken with milk products and food. Taking doxycycline with food helps improve its absorption. It should not be taken on an empty stomach, as this can decrease its effectiveness. Antacids can interfere with the absorption of tetracyclines, so they should not be taken together. While it is important to stay hydrated when taking medications, small sips of water are not specifically recommended for doxycycline administration.

Correct Answer: D

Rationale: The ABG results show a pH above the normal range (7.35-7.45) and a decreased PCO2, indicating respiratory alkalosis. In respiratory alkalosis, the pH is increased and the PCO2 is decreased. Metabolic acidosis (choice A) would present with a low pH and low HCO3 levels. Metabolic alkalosis (choice B) would show an increased pH and HCO3 levels. Respiratory acidosis (choice C) would have a low pH and an increased PCO2.

Correct Answer: C

Rationale: In respiratory acidosis, the pH is low (<7.35) and the PCO2 is increased (>45 mm Hg). These findings indicate that the client is experiencing respiratory acidosis, a condition where there is an excess of carbon dioxide in the blood due to inadequate ventilation, commonly seen in respiratory distress. Metabolic acidosis (Choice A) is characterized by a low pH and decreased bicarbonate levels, which is not the case in this scenario. Metabolic alkalosis (Choice B) is associated with a high pH and increased bicarbonate levels. Respiratory alkalosis (Choice D) is marked by a high pH and decreased PCO2, opposite to the values presented in the blood gas results of this client.

Correct Answer: C

Rationale: Severe hyperkalemia, with a potassium level of 6.9 mEq/L, requires aggressive treatment with Kayexalate and sorbitol to increase the body's excretion of potassium. The normal range for serum potassium is 3.5 to 5.5 mEq/L, so patients with the other potassium levels would not be treated aggressively or would need potassium supplementation. Therefore, option C (Sodium 135 mEq/L and potassium 6.9 mEq/L) is the correct choice as it indicates severe hyperkalemia warranting the administration of Kayexalate and sorbitol. Options A, B, and D have either potassium levels within normal limits, which would not necessitate this aggressive treatment, or potassium levels that are lower than what would typically prompt the need for Kayexalate and sorbitol.