A patient with a history of atrial fibrillation is scheduled for a left hip hemiarthroplasty at 09:00 AM. The health professional is administering 08:00 am medications. Which of these medication orders should the nurse be concerned about?

1. A

   Opioid analgesic intravenously

2. B

   Low molecular weight heparin anticoagulant subcutaneously

3. C

   Beta blocker orally

4. D

   Cephalosporin antibiotic intravenously

Appeared in: GMCH Chandigarh - 2019

Explanation

• Low molecular weight heparin (LMWH) is an anticoagulant that increases the risk of bleeding.
• Administering LMWH only one hour before major surgery like a hip hemiarthroplasty poses a significant and unacceptable risk of uncontrolled intraoperative and postoperative hemorrhage.
• Standard guidelines recommend holding prophylactic doses of LMWH for at least 12 hours and therapeutic doses for at least 24 hours before surgery.
• Recent administration of LMWH is also a contraindication for neuraxial (spinal or epidural) anesthesia, which is commonly used for hip surgeries, due to the risk of spinal hematoma and paralysis.

Why Other Options Were Wrong

• Option A: An opioid analgesic can be safely administered for pre-operative pain or anxiety. It is not a primary safety concern related to the surgery itself, although it requires careful monitoring of the patient's respiratory status and level of consciousness.
• Option C: Continuing a beta blocker is standard and recommended practice. Abruptly stopping it can lead to rebound tachycardia or hypertension, increasing the patient's cardiac risk during surgery.
• Option D: Administering a cephalosporin antibiotic intravenously at 08:00 for a 09:00 surgery is the correct procedure. This is surgical prophylaxis, timed to ensure the antibiotic is effective at preventing infection when the incision is made.

Related Visual

Clinical Relevance

• Nursing practice connection: Use the key finding related to Perioperative medication safety and management, specifically regarding anticoagulants to guide bedside assessment, documentation, and the next nursing action.
• A nurse's primary role in medication administration is to be the final safety check. This includes questioning orders that seem incorrect or could harm the patient.
• Holding the LMWH and clarifying the order with the surgeon and anesthesia team is a critical nursing intervention that prevents a potentially life-threatening bleeding event.
• What if? If the surgery was scheduled for the next day at 09:00 AM, administering the LMWH at 08:00 AM the day before would likely be appropriate (25 hours prior), but the nurse should still confirm the specific timing protocol for that institution and patient.

How to Approach the Question

• First, identify the core of the question: which medication is unsafe given the timing of the surgery?
• Note the key details: the patient has atrial fibrillation (often treated with anticoagulants), the procedure is a hip hemiarthroplasty (major surgery with high bleeding risk), and the time between medication administration (08:00) and surgery (09:00) is only one hour.
• Evaluate each medication option based on its class and its role in the perioperative period.
• Consider the function of an opioid (pain), LMWH (anticoagulation), beta blocker (cardiac control), and cephalosporin (infection prevention).
• Ask yourself: Which of these functions poses the greatest immediate risk when performed one hour before an incision? Anticoagulation and its associated bleeding risk is the most critical danger.
• Conclude that the LMWH is the medication of concern and requires intervention.

Concept Tested & Keywords

• Concept Tested: Perioperative medication safety and management, specifically regarding anticoagulants.
• Stem keywords: atrial fibrillation, hip hemiarthroplasty, preoperative medications, anticoagulant
• Lead-in keywords: concerned about
• Clinical cues: Medication at 08:00 AM for a 09:00 AM surgery, which is a critical 1-hour window.

Question ID

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Copy ID

Reference Book

E6 Pharmacology Nursing Lilley 11e Part 2 pp. 122-124, 127-129