The nurse is scheduled to administer the patient’s next dose of vancomycin at 9:30 a.m. At what time should the nurse draw the patient’s blood to check the trough vancomycin level?

Step 1: Convert the prescribed dose to milligrams. 400 mcg = 0.4 mg (since 1 mg = 1000 mcg)

Step 2: Compare the prescribed dose to the pill strength. The prescribed dose is 0.4 mg.

The pill strength is 0.4 mg.

Step 3: Determine the number of pills needed.

Since the prescribed dose and pill strength are equal, only one pill is needed to administer the correct dose.

Rationale for Choice A:

Correct: One pill of 0.4 mg will provide the exact dose of 400 mcg that has been prescribed.

Direct match: The pill strength matches the prescribed dose, eliminating the need for any calculations or adjustments.

Therapeutic equivalence: Administering one pill ensures that the patient receives the intended amount of medication to achieve the desired therapeutic effect.

Adherence to prescription: Conforms to the healthcare provider's instructions, promoting accurate and safe medication administration.

Choice A rationale:

While checking intravenous lines for patency and redness is important, it's not the most immediate priority in the post- anesthesia care unit (PACU). Ensuring airway patency and adequate oxygenation takes precedence over IV assessment. Issues with IV lines can usually be addressed quickly if they arise, whereas compromised airway or breathing can rapidly lead to life- threatening complications.

Choice B rationale:

Assessment of nasogastric tubes and bowel sounds is also important, but it's not as urgent as checking the airway and breathing. Bowel sounds may be absent immediately after surgery due to anesthesia and bowel manipulation, and their presence or absence doesn't necessarily indicate an immediate problem. Similarly, nasogastric tubes can be checked and adjusted as needed after ensuring the patient's airway and breathing are stable.

Choice D rationale:

Checking the Foley catheter and surgical fluid intake is essential for monitoring fluid balance and renal function, but it's not a priority over assessing airway, breathing, and circulation (ABCs). Fluid status can be assessed and managed after ensuring the patient's respiratory and circulatory systems are functioning adequately.

Choice C rationale:

Checking the airway, lung sounds, and pulse oximetry is the most critical assessment in the PACU because it ensures that the patient is breathing effectively and has adequate oxygen saturation. This assessment addresses the primary ABCs of patient care:

Airway: The nurse will assess for any obstructions or potential for obstruction, such as swelling, secretions, or the tongue blocking the airway. They will also ensure proper positioning of the head and neck to maintain airway patency.

Breathing: The nurse will listen to lung sounds to evaluate air entry and identify any signs of respiratory distress, such as wheezing, crackles, or decreased breath sounds. They will also monitor respiratory rate and effort.

Circulation: Pulse oximetry measures oxygen saturation in the blood, providing a quick and non-invasive assessment of oxygenation status. It's essential to ensure adequate oxygen delivery to tissues and organs.

By prioritizing the assessment of airway, lung sounds, and pulse oximetry, the nurse can quickly identify and intervene in any respiratory or oxygenation issues, preventing potentially life-threatening complications.