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 A
Explanation
Choice A rationale: These lab findings, particularly concentrated urine (high specific gravity) and hyponatremia, are consistent with SIADH, where excessive ADH secretion leads to water retention and dilutional hyponatremia.
Choice B rationale: While it can affect sodium levels, Cushing's syndrome typically results in hypernatremia or normal sodium levels rather than hyponatremia.
Choice C rationale: Usually presents with hyponatremia but not specifically with high urine specific gravity or hematocrit.
Choice D rationale: DI is associated with high serum sodium and low urine specific gravity due to excessive excretion of dilute urine.
Correct Answer is C
Explanation
Choice A rationale: Irregular respirations, bradycardia, and widened pulse pressure might indicate increased intracranial pressure.
Choice B rationale: This set of symptoms is often seen in cardiac tamponade and is referred to as the Beck’s triad and not Cushing's triad.
Choice C rationale: Cushing's triad is a set of clinical signs associated with increased intracranial pressure (ICP) and typically includes bradycardia (slow heart rate),
hypertension (elevated blood pressure), and irregular breathing patterns. Fixed pupils can also be present in some cases, but it's important to note that this triad is not always consistently present and may vary from person to person.
Choice D rationale: This set of symptoms describes symptoms of shock, not specifically Cushing's triad.
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