What Is the CNOR Pass Rate?

The correct answer is D because performing regional blocks prior to the surgical incision provides preemptive analgesia, which blocks nociceptive pain signals before they reach the central nervous system. This prevents central pain sensitization and significantly reduces postoperative opioid requirements. Option A is incorrect because waiting until after anesthesia reversal misses the opportunity to block the initial surgical trauma, reducing the block's overall efficacy. Option B is incorrect as delaying the block until the patient reaches the surgical ward guarantees the patient will experience acute pain during emergence and transport. Option C is incorrect because timing the block with peak intravenous opioid effects does not align with the goal of preventing the pain pathways from activating initially.

Rapid infusion of blood products introduces high levels of citrate, which binds to ionized calcium and causes citrate toxicity and subsequent hypocalcemia. This is evidenced by the prolonged QT interval. Because calcium (Factor IV) is essential for the coagulation cascade, replacing it is critical to halt the lethal triad. Option A treats metabolic acidosis but does not correct the underlying calcium deficit causing the electrocardiogram changes. Option C addresses hypothermia, which is important, but does not resolve the immediate electrolyte derangement. Option D provides necessary clotting factors for balanced resuscitation but lacks the concentrated calcium needed to reverse the acute hypocalcemia and stabilize the myocardium.

When multiple specimens are harvested from different anatomical sites, they must be kept distinct to ensure accurate staging and targeted treatment. The nurse must place each fragment into a separate container filled with formalin and label each with its specific anatomical site. Option A is correct. Option B is incorrect because combining the fragments destroys the anatomical mapping, potentially altering the patient's cancer treatment plan if a specific margin is positive. Option C is incorrect because routine permanent pathology requires a fixative like formalin, not a dry container. Option D is incorrect because normal saline does not fix the tissue, and combining the specimens still ruins the anatomical orientation required by pathology.