Correct Answer: A

Rationale: The correct answer is A: Increased respiratory rate and use of accessory muscles are key signs of respiratory distress. When a person is experiencing respiratory distress, their respiratory rate typically increases as the body tries to compensate for the inadequate oxygenation. Additionally, the use of accessory muscles indicates that the person is working harder to breathe. Choices B, C, and D are incorrect because they do not accurately represent the key signs of respiratory distress. A decreased respiratory rate, cyanosis, altered mental status, and bradycardia are not typical signs of respiratory distress.

Correct Answer: C

Rationale: The correct answer is C: Dependent edema. In right-sided heart failure, the heart is unable to effectively pump blood to the lungs for oxygenation, leading to fluid accumulation in the systemic circulation. This fluid backs up in the venous system, causing increased pressure in the veins of the body, resulting in dependent edema, usually starting in the lower extremities. Elevated blood glucose (choice A) is not directly related to right-sided heart failure. Decreased urine output (choice B) may occur in conditions like acute kidney injury but is not a specific finding of right-sided heart failure. Jaundice (choice D) is more commonly associated with liver dysfunction, not typically seen in right-sided heart failure.

Correct Answer: B

Rationale: The correct answer is to irrigate the NG tube with sterile water first. This action helps to relieve blockages that may be causing the decrease in gastric output and nausea. Turning the client onto their left side may not directly address the issue with the NG tube. Increasing the suction pressure can further exacerbate the problem and should not be done without assessing the situation first. Removing the NG tube and replacing it with a new one is a more invasive step that should be considered only if other measures are unsuccessful.

Correct Answer: A

Rationale: Assessing mobility should be the nurse's priority as it ensures the client's safety and helps in developing an appropriate care plan. By evaluating the client's ability to move after the knee arthroplasty, the nurse can identify any immediate issues or complications that need to be addressed promptly. Monitoring vital signs, providing pain relief, and reinforcing discharge teaching are important aspects of care but assessing mobility takes precedence in ensuring the client's immediate well-being and identifying any potential risks.

Correct Answer: A

Rationale: Correct answer: To assess a patient with potential diabetic ketoacidosis (DKA), healthcare providers should monitor blood glucose and check for ketones in the urine. Elevated blood glucose levels and the presence of ketones in urine are indicative of DKA. Choice B is incorrect because administering insulin and providing fluids are treatments for DKA rather than assessment measures. Choice C is incorrect as administering potassium and checking for electrolyte imbalance are interventions related to managing DKA complications, not initial assessment. Choice D is incorrect because administering sodium bicarbonate and monitoring urine output are not primary assessment actions for DKA.