ATI RN
Proctored Pharmacology ATI
1. What is levothyroxine's pharmacologic classification?
- A. Thyroid Preparations
- B. Metabolic Inhibitors
- C. Analgesic
- D. Loop Diuretic
Correct answer: A
Rationale: Levothyroxine is classified as a thyroid preparation because it is a synthetic form of the thyroid hormone thyroxine. It is primarily used to treat hypothyroidism by supplementing or replacing the natural thyroid hormones in the body, helping to regulate metabolism and energy levels. Choice B, Metabolic Inhibitors, is incorrect because levothyroxine does not inhibit metabolism but rather helps regulate it. Choice C, Analgesic, is incorrect as levothyroxine is not used for pain relief but for thyroid hormone replacement therapy. Choice D, Loop Diuretic, is also incorrect as loop diuretics are medications that act on the kidneys to increase urine production and are not related to thyroid hormone replacement therapy.
2. A client has a new prescription for Propranolol. Which of the following findings should be identified as a contraindication to this medication?
- A. Asthma
- B. Diabetes mellitus
- C. Hypertension
- D. Glaucoma
Correct answer: A
Rationale: Corrected Rationale: Propranolol is a non-selective beta-blocker that can cause bronchoconstriction, making it contraindicated for clients with asthma. Asthma is a contraindication due to the potential for worsening bronchoconstriction and exacerbating respiratory symptoms. Choice B, diabetes mellitus, is not a contraindication for Propranolol. Choice C, hypertension, is actually an indication for Propranolol as it is commonly used to treat hypertension. Choice D, glaucoma, is not a contraindication for Propranolol use.
3. A healthcare professional is preparing to administer Haloperidol 2 mg PO every 12 hr. The available dosage is haloperidol 1 mg/tablet. How many tablets should the healthcare professional administer?
- A. 1 tablet
- B. 2 tablets
- C. 3 tablets
- D. 4 tablets
Correct answer: B
Rationale: To determine the number of tablets needed, divide the desired dose by the dose per tablet. In this case, (2 mg / 1 mg/tablet) = 2 tablets required to administer the prescribed dose of Haloperidol.
4. A hospitalized client has an activated partial thromboplastin time (aPTT) greater than 1.5 times the expected reference range. Which of the following blood products should be prepared for transfusion?
- A. Whole blood
- B. Platelets
- C. Fresh frozen plasma
- D. Packed red blood cells
Correct answer: C
Rationale: Fresh frozen plasma is the appropriate blood product for a client with an elevated aPTT as it contains various coagulation factors that can help correct coagulopathies and prevent bleeding. Elevated aPTT indicates a deficiency in specific clotting factors, and fresh frozen plasma is rich in these factors. Whole blood, platelets, and packed red blood cells do not contain the necessary coagulation factors to correct an elevated aPTT, so they are not indicated in this situation.
5. When educating a client with a new prescription for Losartan, which instruction should the nurse provide?
- A. Avoid consuming grapefruit juice.
- B. Take this medication with a full glass of water.
- C. Take this medication with food.
- D. Monitor for signs of dehydration.
Correct answer: D
Rationale: The correct answer is to instruct the client to monitor for signs of dehydration when taking Losartan. Losartan can lead to dehydration, so it is crucial for the client to watch out for symptoms like dry mouth, increased thirst, and reduced urine output. Monitoring for these signs can help prevent complications associated with dehydration while taking this medication. Choices A, B, and C are incorrect because Losartan is not known to have interactions with grapefruit juice, does not require a specific amount of water for intake, and can be taken with or without food.
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