A previously stable postoperative client on the medical-surgical unit now has a blood pressure of 88/40 mm Hg and a heart rate of 124 beats/min. After placing the client in Trendelenburg position, which action does the nurse perform next?

Correct Answer: A

Rationale: A sudden drop in blood pressure and elevated heart rate indicate a critical deterioration requiring the RRT for immediate intervention, rather than delayed reassessment or premature Code Blue.

Correct Answer: B

Rationale: A positive culture indicates presence of organisms but does not always signify active infection.

Correct Answer: C

Rationale: Viruses contain either DNA or RNA, not both, making the omitted option false; thus, 'ALL are true' is incorrect.

Correct Answer: C

Rationale: Neutrophils are the primary responders to bacterial infections; their depletion (neutropenia) significantly increases susceptibility.

Correct Answer: D

Rationale: A pandemic spans multiple countries or continents, unlike an epidemic, which is more localized.