ATI RN
ATI Pharmacology Proctored
1. Which of the following is the antidote for Heparin toxicity?
- A. Protamine
- B. Methylene blue
- C. N-acetylcysteine
- D. Glucagon
Correct answer: A
Rationale: Protamine is the specific antidote for Heparin toxicity. Heparin is an anticoagulant medication, and if an overdose occurs or if there is excessive bleeding due to Heparin use, protamine, a positively charged molecule, can neutralize the anticoagulant effects of Heparin by forming a complex with it. This binding prevents Heparin from further inhibiting coagulation factors and helps in reversing its effects.
2. A client has a new prescription for Ranitidine. Which of the following instructions should the nurse include?
- A. Take the medication with an antacid.
- B. Avoid drinking coffee while taking this medication.
- C. Take the medication at bedtime.
- D. Stop the medication if you develop a headache.
Correct answer: C
Rationale: The correct instruction for a client prescribed Ranitidine is to take the medication at bedtime. Ranitidine is best taken at bedtime as it helps decrease the production of stomach acid during the night, providing optimal relief for conditions like heartburn or acid indigestion.
3. A client has a new prescription for Folic Acid. Which of the following client statements indicates an understanding of the teaching?
- A. I will take this medication with food.
- B. I need to monitor for skin rash while taking this medication.
- C. I need to increase my intake of green, leafy vegetables.
- D. I will stop taking this medication if I feel nauseous.
Correct answer: C
Rationale: The correct answer is C. Folic acid is naturally found in green, leafy vegetables such as spinach and broccoli. Increasing the intake of these vegetables can supplement the prescribed folic acid and help maintain adequate levels in the body. It is essential to understand that dietary sources of folic acid can complement the medication and support overall health. Choices A, B, and D are incorrect because taking folic acid with food, monitoring for skin rash, or stopping the medication if feeling nauseous do not directly relate to enhancing the therapeutic effects of folic acid through dietary intake.
4. A healthcare professional is administering a Dopamine infusion at a low dose to a client with severe heart failure. Which of the following findings is an expected effect of this medication?
- A. Lowered heart rate
- B. Increased myocardial contractility
- C. Decreased conduction through the AV node
- D. Vasoconstriction of renal blood vessels
Correct answer: B
Rationale: Dopamine, when administered at a low dose, is expected to increase myocardial contractility by stimulating beta1 receptors. This positive inotropic effect leads to an increase in cardiac output. Therefore, the correct answer is increased myocardial contractility, as it is a desired effect of administering dopamine to a client with severe heart failure.
5. Which of the following is the primary site of activity for the drug Warfarin?
- A. Kidney
- B. Liver
- C. Blood
- D. Heart
Correct answer: B
Rationale: Warfarin primarily affects the liver where it inhibits the synthesis of clotting factors.
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