Correct Answer: A

Rationale: In a client with a blood glucose level of 600 mg/dL, which indicates severe hyperglycemia or diabetic ketoacidosis, the nurse should prepare to administer regular insulin (A). Regular insulin has a rapid onset of action and is the preferred choice for immediate correction of high blood glucose levels. NPH insulin (B), lispro insulin (C), and glargine insulin (D) are not suitable for the rapid correction of severe hyperglycemia.

Correct Answer: D

Rationale: In the scenario where a healthcare provider contaminates a sterile glove and the sterile field during a procedure, it is crucial to identify any breach in surgical asepsis. Any potential contamination should be considered compromised, and the nurse must act promptly to maintain sterility by providing a fresh set of sterile supplies for the procedure to continue safely.

Correct Answer: C

Rationale: The correct action when unable to distinguish the point of the first sound during blood pressure measurement is to deflate the cuff to zero and wait 30 to 60 seconds before reattempting the reading. This allows blood flow to return to the extremity, ensuring a more accurate reading the second time. It is important to ensure that the cuff is fully deflated and the appropriate wait time is given to obtain an accurate blood pressure measurement.

Correct Answer: D

Rationale: Thrombus formation is a risk for clients who are immobile postoperatively. Encouraging frequent ambulation helps to prevent stasis in the lower extremities, reducing the risk of thrombus formation. This intervention promotes circulation and prevents blood clot formation, making it the most important intervention in this situation.

Correct Answer: D

Rationale: Washing hands before handling needles and syringes is a crucial aspect of standard precautions to prevent infections. This practice helps reduce the risk of transferring microorganisms from the hands to the syringes and needles, thus promoting safety during medication administration.