The newly diagnosed patient with type 2 diabetes has been prescribed metformin (Glucophage). What should the nurse tell the patient to best explain how this medication works?
Increases insulin release from the pancreas, inhibits glucagon secretion, and decreases gastric emptying.
Reduces glucose production by the liver and enhances insulin sensitivity.
Slows the absorption of carbohydrate in the small intestine.
Increases insulin production from the pancreas.
The Correct Answer is B
Choice A rationale: Metformin does not significantly affect insulin release from the pancreas or glucagon secretion but reduces glucose production by the liver and enhances insulin sensitivity in tissues.
Choice B rationale: Metformin primarily works by reducing glucose production in the liver and improving the body's response to insulin, thereby lowering blood sugar levels.
Choice C rationale: Metformin does not notably slow carbohydrate absorption in the small intestine.
Choice D rationale: Metformin does not directly increase insulin production from the pancreas.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A rationale: Anterior spinal artery syndrome is caused by ischemia of the anterior two-thirds of the spinal cord, resulting in loss of motor function and pain and temperature sensation below the level of the lesion.
Choice B rationale: This is a condition that occurs when the nerve roots in the lower end of the spinal cord are compressed, causing symptoms such as lower back pain, sciatica, saddle anesthesia, bladder and bowel dysfunction, and sexual dysfunction.
Choice C rationale: Horner's syndrome is caused by damage to the sympathetic nerve fibers in the neck or chest, resulting in drooping eyelid, constricted pupil, and lack of sweating on one side of the face.
Choice D rationale: Brown-Séquard syndrome is caused by hemisection of the spinal cord, resulting in ipsilateral loss of motor function and proprioception and contralateral loss of pain and temperature sensation below the level of the lesion.
Correct Answer is B
Explanation
Choice A rationale: Rotating the neck to one side while observing the eyes moving to the opposite side is a procedure for testing for oculocephalic reflex or doll's eye
phenomenon, which indicates brainstem function.
Choice B rationale: This is the correct answer. Kernig's sign is a clinical sign that indicates meningitis, which is an inflammation of the membranes that cover the brain and spinal cord. To test for Kernig's sign, the nurse should flex the patient's hip to 90 degrees and then attempt to extend the knee. A positive Kernig's sign is when the patient
experiences pain in the lower back or hamstring, resists knee extension, or involuntarily flexes the opposite leg.
Choice C rationale: Stroking the lateral aspect of the sole of the patient's foot and observing for dorsiflexion of the big toe is a procedure for testing for Babinski's sign, which indicates upper motor neuron lesion or damage.
Choice D rationale: Passively flexing the patient's neck forward and observing for hip and knee flexion is a procedure for testing for Brudzinski's sign, which also indicates meningitis.
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