Nokea
Glucagon is used for:
- A. Toxicity induced with alfa adrenergic blocking agents
- B. Toxicity induced with beta adrenergic blocking agents
- C. Hyperglycemia
- D. Arterial hypertension
Correct Answer: B
Rationale: Glucagon treats beta-blocker toxicity by increasing cardiac contractility via a non-adrenergic pathway.
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A 68-year-old patient who must take antihistamines for severe allergies is planning a vacation to Mexico. The nurse will encourage the patient to:
- A. Avoid sightseeing during the hottest part of the day
- B. Discontinue the antihistamines if he becomes extremely restless
- C. Decrease the dosage of the drugs if he experiences excessive thirst
- D. Continue taking the antihistamines even if he begins to hallucinate
Correct Answer: A
Rationale: Antihistamines can decrease sweating by blocking cholinergic receptors, placing the patient at high risk for heat stroke. Avoiding the hottest part of the day will help prevent dehydration and heat prostration. Extreme restlessness could indicate Parkinson-like syndrome not usually associated with antihistamines. Excessive thirst is characteristic of hyperglycemia, and hallucinations are associated with drugs that affect neurologic functioning. Nurses should never tell patients to decrease or discontinue a drug unless the prescriber has instructed them to do so.
The probable cause of leucopenia and agranulocytosis:
- A. Diiodthironine
- B. Potassium iodide
- C. Mercazolil
Correct Answer: C
Rationale: Mercazolil (methimazole) can cause agranulocytosis and leukopenia as serious side effects by affecting bone marrow function.
Patient education regarding prescribed medication includes:
- A. Instructions written at the high school reading level
- B. Discussion of expected adverse drug reactions
- C. How to store leftover medication such as antibiotics
- D. Verbal instructions always in English
Correct Answer: B
Rationale: Discussing adverse reactions is key to patient safety and adherence, unlike rigid reading levels , language limits , or leftover storage (C, less critical).
The client has a PRN prescription for loperamide hydrochloride (Imodium). The nurse understands that this medication is used for which condition?
- A. Constipation
- B. Abdominal pain
- C. An episode of diarrhea
- D. Hematest-positive nasogastric tube drainage
Correct Answer: C
Rationale: Loperamide is an antidiarrheal agent. It is used to manage acute and also chronic diarrhea in conditions such as inflammatory16inflammatory bowel disease. Loperamide also can be used to reduce the volume of drainage from an ileostomy. It is not used for the conditions in options 1, 2, and 4.
The nurse is teaching a patient who will be discharged home with naltrexone (ReVia) after treatment for opioid addiction. What information will the nurse include in the teaching for this patient?
- A. This drug will help control cravings
- B. You may take this drug once weekly
- C. ReVia blocks the pleasurable effects of opioids
- D. If you discontinue this drug abruptly, you will have withdrawal symptoms
Correct Answer: C
Rationale: Naltrexone blocks opioid euphoria; it doesn't reduce cravings or cause withdrawal on stop . ReVia acts by blocking the pleasurable effects of opioids.