Patients with acute pancreatitis are generally made NPO (nothing by mouth) and may require gastric suctioning via NG tube, in order to:
Prevent abdominal distention.
Prevent mechanical obstruction of the intestine.
Limit pancreatic secretion.
Prevent hyperglycemia associated with loss of insulin secretion.
The Correct Answer is C
Choice C reason: Limiting pancreatic secretion is the primary reason for making patients with acute pancreatitis NPO and using gastric suctioning. By reducing the stimulation of the pancreas, the inflammation and autodigestion of pancreatic tissue can be minimized, aiding in the healing process.
Choice A reason: Preventing abdominal distention is a secondary benefit of making patients NPO, but it is not the primary reason for this intervention in acute pancreatitis.
Choice B reason: Preventing mechanical obstruction of the intestine is not the main goal of making patients NPO in acute pancreatitis. This condition primarily affects the pancreas, not the intestines.
Choice D reason: Preventing hyperglycemia associated with loss of insulin secretion is not the primary reason for making patients NPO in acute pancreatitis. While hyperglycemia can occur in severe cases, the main focus is on reducing pancreatic stimulation.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A reason:
Arterial emboli from a heart valve are not the most common cause of myocardial ischemia. While emboli can obstruct blood flow and cause ischemia, they are a less common cause compared to atherosclerosis. Embolic events typically result from conditions like atrial fibrillation or valvular heart disease but do not account for the majority of myocardial ischemia cases.
Choice B reason:
Atherosclerosis is the most common cause of myocardial ischemia. It involves the buildup of plaque within the coronary arteries, leading to reduced blood flow and oxygen supply to the heart muscle. This condition is a leading cause of coronary artery disease and is responsible for the majority of myocardial ischemia cases.
Choice C reason:
Idiopathic vasospasm, although a cause of myocardial ischemia, is not as common as atherosclerosis. Vasospasm refers to the sudden constriction of a coronary artery, which can reduce blood flow to the heart muscle. However, it accounts for a smaller percentage of ischemia cases compared to the widespread prevalence of atherosclerosis.
Choice D reason:
Venous emboli are typically associated with conditions such as deep vein thrombosis and pulmonary embolism, affecting the venous circulation rather than the coronary arteries. They do not commonly cause myocardial ischemia, which primarily involves the coronary arteries and arterial blockages.
Correct Answer is B
Explanation
Choice A reason:
Nifedipine is a dihydropyridine calcium channel blocker that primarily affects vascular smooth muscle, leading to vasodilation. While it can lower blood pressure, it does not significantly affect cardiac conduction or rhythm, which is why it is not used as an antidysrhythmic.
Choice B reason:
Verapamil and Diltiazem are calcium channel blockers that affect the movement of calcium into the cells of both the heart and blood vessels. They have a significant impact on cardiac conduction and can be used to treat arrhythmias by slowing down the heart rate and reducing the conduction through the atrioventricular node.
Choice C reason:
Not all three medications have antidysrhythmic properties. Only Verapamil and Diltiazem are effective as antidysrhythmic agents due to their effects on cardiac conduction. Nifedipine does not share these properties and is therefore not used to manage arrhythmias.
Choice D reason:
Nifedipine primarily affects the movement of calcium into the cells of vascular smooth muscle, not the heart. Its main use is in the treatment of hypertension and angina, where its vasodilatory effects are beneficial. It does not significantly impact cardiac rhythm or conduction like Verapamil and Diltiazem do.
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