Glyburide works by which of the following mechanisms?

Choice A rationale

Staying with the patient and rechecking blood glucose delays immediate corrective action required for severe hypoglycemia (40 mg/dL). While safety is important, prompt treatment with glucose is the priority to prevent further complications.

Choice B rationale

Following the hypoglycemia protocol ensures immediate glucose administration, either orally, intravenously, or intramuscularly, to stabilize the patient. This is critical as glucose levels below 40 mg/dL require urgent intervention to prevent neuronal damage or coma.

Choice C rationale

Monitoring and rechecking glucose after treating is essential but not sufficient as the first action. Hypoglycemia this severe needs immediate treatment before monitoring, ensuring prompt glucose replacement to prevent worsening symptoms.

Choice D rationale

Notifying the physician without treating the hypoglycemia risks unnecessary delays. Immediate action, such as administering glucose per protocol, is vital in this emergency scenario for patient safety.

Choice A rationale

Loss of sensation to the perineum, buttocks, inner thighs, and back of the legs may indicate cauda equina syndrome, a surgical emergency. This condition involves compression of the spinal nerve roots and can lead to permanent neurological damage if not promptly addressed. Immediate medical intervention is critical.

Choice B rationale

Nausea and delayed voiding postoperatively are common, potentially due to anesthesia effects or limited mobility. While these findings warrant monitoring, they do not typically indicate an urgent issue unless prolonged or associated with other complications.

Choice C rationale

Mild low back pain is expected after lumbar spinal surgery due to manipulation of spinal structures. Pain management with prescribed analgesics and gradual mobilization is part of the standard postoperative care plan, and it does not usually necessitate immediate reporting.

Choice D rationale

A single episode of emesis can result from anesthesia effects or medication. Unless accompanied by persistent vomiting, signs of aspiration, or electrolyte imbalances, isolated emesis is not typically urgent and should be managed with antiemetics if necessary.