What does the term 'first pass effect' refer to?

Choice A reason: This is correct. Blood pressure is the most important vital sign to monitor after giving sublingual nitroglycerin to a client with chest pain. Nitroglycerin is a medication that dilates the blood vessels and lowers the blood pressure. This can relieve the chest pain caused by angina, which is a condition where the heart muscle does not get enough oxygen due to narrowed or blocked arteries. However, if the blood pressure drops too low, the client may experience dizziness, fainting, or shock. Therefore, the nurse should check the blood pressure before and after giving nitroglycerin and report any significant changes to the doctor.

Choice B reason: This is incorrect. Blood glucose levels are not directly affected by sublingual nitroglycerin. However, some clients with chest pain may also have diabetes, which is a risk factor for heart disease. Diabetes is a condition where the body cannot regulate the amount of sugar in the blood. High or low blood sugar levels can cause symptoms such as thirst, hunger, fatigue, blurred vision, or confusion. Therefore, the nurse should check the blood glucose levels of clients with diabetes and follow the doctor's orders for managing their blood sugar.

Choice C reason: This is incorrect. Body temperature is not directly affected by sublingual nitroglycerin. However, some clients with chest pain may also have a fever, which is a sign of infection or inflammation. Fever is a condition where the body's temperature rises above the normal range. Fever can cause symptoms such as sweating, chills, headache, or muscle ache. Therefore, the nurse should check the body temperature of clients with fever and follow the doctor's orders for treating their infection or inflammation.

Choice D reason: This is incorrect. Respiratory rate is not directly affected by sublingual nitroglycerin. However, some clients with chest pain may also have difficulty breathing, which is a sign of heart failure or lung disease. Difficulty breathing is a condition where the client cannot get enough air into or out of the lungs. Difficulty breathing can cause symptoms such as coughing, wheezing, or gasping. Therefore, the nurse should check the respiratory rate of clients with difficulty breathing and follow the doctor's orders for improving their oxygenation.

Choice A reason: Administering half of the scheduled dose of Colace is not the correct action for the nurse who is caring for a patient who had two loose stools during the night shift. Colace is the brand name of docusate, which is a stool softener that works by increasing the amount of water and fat in the stool, making it easier to pass. Colace is used to treat and prevent constipation, which is a condition of infrequent or hard bowel movements. Colace is not indicated for diarrhea, which is a condition of frequent and loose bowel movements. Administering half of the scheduled dose of Colace may not be enough to prevent constipation, and it may also worsen diarrhea by adding more water and fat to the stool.

Choice B reason: Administering the scheduled dose of Colace is not the correct action for the nurse who is caring for a patient who had two loose stools during the night shift. Colace is the brand name of docusate, which is a stool softener that works by increasing the amount of water and fat in the stool, making it easier to pass. Colace is used to treat and prevent constipation, which is a condition of infrequent or hard bowel movements. Colace is not indicated for diarrhea, which is a condition of frequent and loose bowel movements. Administering the scheduled dose of Colace may not be necessary to prevent constipation, and it may also worsen diarrhea by adding more water and fat to the stool.

Choice C reason: Inserting a rectal tube to prevent excoriation is not the correct action for the nurse who is caring for a patient who had two loose stools during the night shift. A rectal tube is a device that is inserted into the rectum and connected to a drainage bag, which collects the stool and prevents leakage and skin irritation. A rectal tube is used for patients who have fecal incontinence, which is the inability to control bowel movements. A rectal tube is not indicated for patients who have diarrhea, which is a condition of frequent and loose bowel movements. Inserting a rectal tube may not be effective to prevent excoriation, and it may also cause complications such as infection, bleeding, or perforation.

Choice D reason: Holding the scheduled dose of Colace and notifying the ordering physician is the correct action for the nurse who is caring for a patient who had two loose stools during the night shift. Colace is the brand name of docusate, which is a stool softener that works by increasing the amount of water and fat in the stool, making it easier to pass. Colace is used to treat and prevent constipation, which is a condition of infrequent or hard bowel movements. Colace is not indicated for diarrhea, which is a condition of frequent and loose bowel movements. Holding the scheduled dose of Colace may be appropriate to avoid further diarrhea, and notifying the ordering physician may be necessary to determine the cause and the treatment of diarrhea