ATI RN
ATI Pharmacology Quizlet
1. A healthcare provider is teaching the parents of a school-age child about transdermal Methylphenidate. Which of the following instructions should the healthcare provider include?
- A. Apply one patch twice a day.
- B. Leave the patch on for 9 hours.
- C. Apply the patch to the child's waist.
- D. Use the opened tray within 6 months.
Correct answer: B
Rationale: When administering transdermal Methylphenidate, it is important to leave the patch on for 9 hours each day to ensure the medication is effective. This duration allows for proper absorption of the medication through the skin. It is crucial for parents to follow this instruction to achieve the desired therapeutic effect for their child.
2. When administering Lithium to a patient, what is a life-threatening side effect?
- A. Erythema
- B. Pancreatitis
- C. Seizures
- D. Headache
Correct answer: C
Rationale: When a patient is being treated with Lithium, a life-threatening side effect to watch out for is seizures. Lithium can lower the seizure threshold, increasing the risk of seizures. Seizures are serious and necessitate prompt medical intervention to ensure the patient's safety and well-being. Erythema, which is redness of the skin, is not a common life-threatening side effect of Lithium. Pancreatitis can be a side effect of Lithium, but it is not typically life-threatening. Headache is a common side effect of Lithium, but it is not considered life-threatening.
3. What is the therapeutic action of Phenytoin?
- A. Antidiabetic
- B. Anticonvulsant
- C. Mood stabilizer
- D. Antianxiety agent
Correct answer: B
Rationale: Phenytoin is primarily used as an anticonvulsant to prevent and control seizures. It works by stabilizing electrical activity in the brain, making it effective in managing conditions like epilepsy. Antidiabetic medications are used to regulate blood sugar levels, mood stabilizers help manage mood disorders, and antianxiety agents are used to reduce anxiety symptoms, none of which are the primary therapeutic action of Phenytoin.
4. A toddler is being admitted to the hospital after an Acetaminophen overdose. Which of the following medications should the nurse anticipate administering to this patient?
- A. Acetylcysteine
- B. Pegfilgrastim
- C. Misoprostol
- D. Naltrexone
Correct answer: A
Rationale: In cases of Acetaminophen overdose, acetylcysteine is the antidote of choice. Acetylcysteine helps prevent liver damage by replenishing depleted glutathione levels, which is essential for detoxifying acetaminophen metabolites. Pegfilgrastim is a medication used to stimulate white blood cell production, Misoprostol is a medication for preventing stomach ulcers, and Naltrexone is used for treating opioid addiction and alcoholism, but none of these are indicated for Acetaminophen overdose.
5. Which of the following drugs has a therapeutic effect that increases cardiac output and slows heart rate?
- A. Heparin
- B. Alprazolam
- C. Digoxin
- D. Levothyroxine
Correct answer: C
Rationale: Digoxin is the correct answer. It is a medication known for its positive inotropic effects, which increase cardiac output, and negative chronotropic effects, which slow the heart rate. These effects are achieved by inhibiting the sodium-potassium ATPase pump in myocardial cells. Therefore, Digoxin is commonly prescribed to manage conditions like heart failure and atrial fibrillation, where enhancing cardiac output and reducing heart rate are beneficial. Choices A, B, and D are incorrect because Heparin is an anticoagulant, Alprazolam is a benzodiazepine used for anxiety disorders, and Levothyroxine is a thyroid hormone replacement drug, none of which have the specified therapeutic effects on cardiac function.
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