Correct Answer: B

Rationale: A serum glucose level of 600 mg/dL is extremely high in a client with hyperosmolar hyperglycemic state (HHS) and poses a significant risk of serious complications such as dehydration, coma, and electrolyte imbalances. Rapid intervention is crucial to normalize the glucose level and prevent further deterioration. Serum osmolality of 320 mOsm/kg, serum potassium of 4.5 mEq/L, and serum sodium of 140 mEq/L, while important to monitor in HHS, do not represent an immediate life-threatening condition that requires urgent intervention compared to the critically high glucose level.

Correct Answer: B

Rationale: In Guillain-Barre syndrome, decreased deep tendon reflexes are a critical finding that may indicate impending respiratory failure. This is due to the involvement of the peripheral nervous system affecting the muscles, including those involved in breathing. Reporting decreased deep tendon reflexes promptly is essential to prevent respiratory compromise. Facial weakness, difficulty speaking, and inability to move the eyes are common manifestations of Guillain-Barre syndrome but are not as immediately concerning as respiratory distress and impending respiratory failure.

Correct Answer: B

Rationale: Tertiary prevention focuses on managing and improving health outcomes for existing conditions, such as diabetes.

Correct Answer: B

Rationale: Reviewing the client's current medication regimen helps identify any potential issues and ensures that the client is taking the correct medications.

Correct Answer: C

Rationale: Jugular vein distention indicates increased central venous pressure, which requires immediate intervention in a client with pneumonia.