Correct Answer: C

Rationale: Increasing humidity in the client's room can help liquefy thick secretions and facilitate easier airway clearance in a client with a tracheostomy. This intervention should be implemented first as it is non-invasive and can often effectively address the issue of thick secretions. Performing deep suctioning (Choice A) should not be the first intervention as it is more invasive and should be done based on assessment findings. Encouraging the client to drink plenty of fluids (Choice B) is beneficial but may not provide immediate relief for thick secretions. Administering a mucolytic agent (Choice D) requires a healthcare provider's prescription and should be based on assessment data and the client's condition.

Correct Answer: B

Rationale: Confusion and altered mental status in a client with cirrhosis and associated ascites and jaundice are indicative of hepatic encephalopathy, a serious complication that requires immediate intervention. This condition can progress rapidly and lead to coma if not addressed promptly. Peripheral edema (choice A) and increased abdominal girth (choice C) are common manifestations of fluid retention in cirrhosis but may not require immediate intervention unless severe. Yellowing of the skin (choice D) is a classic sign of jaundice, which is already known in this client and may not necessitate immediate intervention unless associated with other concerning symptoms.

Correct Answer: A

Rationale: The correct answer is A: Hypernatremia. In a client with Diabetes Insipidus, hypernatremia, an elevated sodium level in the blood, can lead to neurological symptoms such as confusion, seizures, or coma. Immediate intervention is necessary to prevent these serious complications. Excessive thirst (choice B) is a common symptom of Diabetes Insipidus but does not require immediate intervention. Elevated heart rate (choice C) and poor skin turgor (choice D) are important assessments but are not as critical as hypernatremia in this context.

Correct Answer: C

Rationale: In a client with left-sided heart failure, monitoring serum creatinine is crucial to evaluate kidney function and fluid balance. Elevated creatinine levels can indicate impaired kidney function, which is common in heart failure due to decreased cardiac output and renal perfusion. Serum sodium levels (choice A) are important but are more closely associated with fluid balance and heart failure exacerbation. Serum potassium (choice B) is also important to monitor, but it is more closely linked to cardiac arrhythmias rather than kidney function. Serum glucose levels (choice D) are significant but are not the priority for monitoring in left-sided heart failure.

Correct Answer: B

Rationale: In this scenario, the most critical intervention is to obtain a wound swab for culture and sensitivity. This will help identify the causative organism present in the wound, enabling healthcare providers to prescribe the appropriate treatment. Initiating contact isolation (Choice A) may be necessary in certain situations but is not the priority in this case where infection is suspected. Assessing the temperature (Choice C) is important for monitoring the client's condition but does not address the underlying cause. Using alcohol-based solutions for hand hygiene (Choice D) is a standard practice for infection control but does not directly address the client's specific condition of a postoperative wound with evisceration and elevated temperature.