A nurse is teaching a group of nurses about the administration of nitroglycerin. Which of the following routes of administration provides the most rapid onset for the client?
Topical ointment
Sustained-release
Sublingual
Transdermal patch
The Correct Answer is C
Choice A: Topical ointment Topical ointment forms of nitroglycerin are used for their long-acting effects. The medication is absorbed slowly through the skin, providing a steady level of drug in the bloodstream. This form is not designed for rapid relief of acute angina attacks but rather for prevention.
Choice B: Sustained-release Sustained-release forms of nitroglycerin are designed to release the medication slowly over an extended period. This route is also not suitable for treating acute symptoms because it does not provide immediate relief but is used for long-term management of angina pectoris. Nitroglycerin is a medication used primarily to treat angina pectoris (chest pain) and heart failure. It works by relaxing the smooth muscles and dilating the blood vessels, which increases blood flow to the heart and decreases its workload. The route of administration can significantly affect the onset and duration of the medication’s action.
Choice C: Sublingual The sublingual route, where the medication is placed under the tongue, allows for rapid absorption into the bloodstream through the rich supply of blood vessels found in the area. This form of nitroglycerin acts quickly, usually within 1 to 3 minutes, and is the preferred choice for immediate relief of angina pain. When rapid onset is required for relief from acute angina symptoms, the sublingual route is the most appropriate choice for administering nitroglycerin. It provides quick absorption and fast action, making it an essential treatment option for patients experiencing chest pain due to angina.
Choice D: Transdermal patch Transdermal patches release nitroglycerin slowly through the skin and into the bloodstream. Like topical ointments and sustained-release forms, they are used for long-term prophylaxis of angina and not for rapid relief.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A reason:Rescheduling the scan is not necessary unless there are other contraindications or scheduling conflicts.
Choice B reason:Sending a suction catheter is a precautionary measure, but it does not address the management of the feeding tube during the scan.
Choice C reason:Shutting off the feeding 30-60 minutes before the scan is a standard practice to reduce the risk of aspiration and to ensure that the stomach contents do not interfere with the imaging.
Choice D reason:Connecting the feeding tube to continuous suction is not typically required unless there is a specific concern for aspiration or gastric content management during the scan.
Correct Answer is D
Explanation
Choice A reason: Hypermagnesemia, or high levels of magnesium in the blood, is not typically associated with refeeding syndrome. Instead, refeeding syndrome can lead to hypomagnesemia, which is a low level of magnesium in the blood, due to shifts of magnesium into the cells during insulin secretion in the refeeding process.
Choice B reason: Hyponatremia, or low levels of sodium in the blood, is not a hallmark of refeeding syndrome. While fluid shifts can affect sodium levels, the key electrolyte disturbances in refeeding syndrome involve phosphorus, potassium, and magnesium.
Choice C reason: Hyperkalemia, or high levels of potassium in the blood, is not a common finding in refeeding syndrome. Similar to magnesium, potassium can shift into cells during refeeding, which can actually lead to hypokalemia, or low levels of potassium in the blood.
Choice D reason: Hypophosphatemia, or low levels of phosphorus in the blood, is the hallmark of refeeding syndrome. When a malnourished individual is refed, insulin secretion is stimulated by the increased carbohydrate intake. Insulin promotes cellular uptake of glucose, which is accompanied by phosphate, potassium, and magnesium, leading to a decrease in the serum levels of these electrolytes. Phosphorus is critical for cellular processes, and its deficiency can lead to muscle weakness, respiratory failure, hemolysis, and impaired cardiac function. During refeeding, careful monitoring of electrolytes is essential to prevent and manage refeeding syndrome. Hypophosphatemia is the most significant laboratory finding to anticipate in a patient with refeeding syndrome, and it requires prompt recognition and treatment to prevent serious complications.
Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.
Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today
Report Wrong Answer on the Current Question
Do you disagree with the answer? If yes, what is your expected answer? Explain.
Kindly be descriptive with the issue you are facing.