ATI RN
ATI Pharmacology
1. A healthcare professional is preparing to administer acetaminophen 650 mg PO every 6 hr PRN for pain. The amount available is acetaminophen liquid 500 mg/5 mL. How many mL should the healthcare professional administer per dose?
- A. 6.5 mL
- B. 7 mL
- C. 5 mL
- D. 8 mL
Correct answer: A
Rationale: To calculate the volume to administer: (Desired dose / Concentration) = Volume to administer. In this case, (650 mg / 500 mg) x 5 mL = 6.5 mL. Therefore, the healthcare professional should administer 6.5 mL of acetaminophen per dose to achieve the desired 650 mg dose for pain relief. Choice A is correct because it accurately calculates the volume required based on the concentration of the liquid acetaminophen. Choices B, C, and D are incorrect as they do not reflect the correct calculation based on the concentration of the liquid medication and the desired dose.
2. A nurse is assessing a client who has a heart rate of 40/min. The client is diaphoretic and has chest pain. Which of the following medications should the nurse plan to administer?
- A. Lidocaine
- B. Adenosine
- C. Atropine
- D. Verapamil
Correct answer: C
Rationale: The correct answer is C: Atropine. The client's presentation of bradycardia, diaphoresis, and chest pain indicates reduced cardiac output, requiring intervention to increase the heart rate. Atropine is used to treat bradycardia by blocking cardiac muscarinic receptors, thus inhibiting the parasympathetic nervous system. Lidocaine (Choice A) is used for ventricular arrhythmias, not bradycardia. Adenosine (Choice B) is used for supraventricular tachycardia, not bradycardia. Verapamil (Choice D) is a calcium channel blocker used for certain arrhythmias and hypertension, but not for increasing heart rate in bradycardia.
3. A two-month-old infant who has gastroesophageal reflux is thriving without other complications. Which instruction should the nurse include in the teaching plan?
- A. Place the infant in the Trendelenburg position after feeding
- B. Thicken formula with rice cereal
- C. Give continuous nasogastric feedings
- D. Give larger, less frequent feeds
Correct answer: B
Rationale: The correct instruction for a two-month-old infant with gastroesophageal reflux who is thriving without complications is to thicken the formula with rice cereal. This can help reduce reflux by increasing the weight of the formula, making it less likely to be regurgitated. Placing the infant in the Trendelenburg position after feeding (Choice A) is not recommended as it can increase the risk of aspiration. Continuous nasogastric feedings (Choice C) are not typically indicated for uncomplicated reflux in infants. Giving larger, less frequent feeds (Choice D) can worsen reflux symptoms by overloading the stomach.
4. For a patient with a history of liver disease, which type of diet is most appropriate?
- A. High-protein
- B. High-carbohydrate
- C. Low-protein
- D. Low-fat
Correct answer: D
Rationale: A low-fat diet is the most appropriate for a patient with a history of liver disease. This diet helps reduce liver stress and manage symptoms associated with liver disease. High-protein and high-carbohydrate diets can strain the liver and worsen the condition. A low-protein diet may be necessary in cases of liver disease with hepatic encephalopathy, but in general, a low-fat diet is recommended to support liver function and overall health.
5. A nurse is caring for a client with hypertension who asks about a prescription for propranolol. The nurse should inform the client that this medication is contraindicated in clients with a history of which of the following conditions?
- A. Asthma
- B. Glaucoma
- C. Depression
- D. Migraines
Correct answer: A
Rationale: Corrected Rationale: Propranolol is contraindicated in clients with a history of asthma because it can cause bronchospasms due to its non-selective beta-blocking properties. By blocking beta-2 receptors in the lungs, propranolol can lead to bronchoconstriction, potentially triggering asthma symptoms and exacerbating respiratory issues. Asthma patients should avoid medications like propranolol that can worsen their condition. Choices B, C, and D are incorrect as propranolol is not contraindicated in clients with glaucoma, depression, or migraines. In fact, propranolol is sometimes used in the treatment of migraines and certain types of glaucoma.
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