ATI RN
Proctored Pharmacology ATI
1. A healthcare professional is preparing to administer morphine 4 mg IV to a client. Available is morphine 10 mg/mL. How many mL should the healthcare professional administer?
- A. 0.2 mL
- B. 0.4 mL
- C. 0.6 mL
- D. 0.8 mL
Correct answer: B
Rationale: To administer 4 mg from a solution of 10 mg/mL, the healthcare professional should administer 0.4 mL. The calculation is done by dividing the desired dose (4 mg) by the concentration of the solution (10 mg/mL), which equals 0.4 mL. Choice A (0.2 mL) is incorrect because it is half of the correct calculation. Choice C (0.6 mL) is incorrect because it is 50% more than the correct calculation. Choice D (0.8 mL) is incorrect because it exceeds the correct calculation.
2. Sugar alcohols have anticariogenic properties and can protect the teeth by decreasing demineralization, enhancing remineralization, or increasing salivary flow, even in the presence of a fermentable carbohydrate. Name 3 sugar alcohols.
- A. Sorbitol
- B. Mannitol
- C. Xylitol
- D. Erythritol
Correct answer: D
Rationale: Sugar alcohols such as sorbitol, mannitol, and xylitol are commonly used in sugar-free products and have properties that help protect teeth from caries by promoting remineralization and increasing salivary flow. Erythritol is another common sugar alcohol used as a sweetener in various products, but it was not listed in the question.
3. Which of the following is NOT a risk factor for osteoarthritis?
- A. Older age
- B. Sports injuries
- C. Obesity
- D. Vegan diet
Correct answer: Vegan diet
Rationale:
4. A nurse is providing teaching to a client who is at 28 weeks of gestation and is scheduled for a glucose tolerance test. Which of the following instructions should the nurse include?
- A. You should avoid consuming any food or drink for 8 hours before the test.
- B. You should drink 8 oz of water 1 hour before the test.
- C. You should take an antacid before the test.
- D. You should drink a glass of milk 1 hour before the test.
Correct answer: A
Rationale: Clients should avoid consuming any food or drink for 8 hours before the glucose tolerance test to ensure accurate results. Choice A is the correct instruction for the client preparing for a glucose tolerance test. Drinking water, taking an antacid, or consuming milk before the test can interfere with the accuracy of the results. Water or any other substance might affect the concentration of glucose in the blood, leading to inaccurate test results. Antacids and milk can also interfere with the test outcome. Therefore, the client should follow the instruction to fast for 8 hours before the test.
5. The healthcare provider should question an order for glucocorticoids in the treatment of a patient with what condition?
- A. Systemic fungal infection
- B. Diabetes Mellitus
- C. Myasthenia Gravis
- D. Glaucoma
Correct answer: A
Rationale: Glucocorticoids are contraindicated in the treatment of a patient with systemic fungal infection or in patients receiving live vaccines due to their immunosuppressive effects. Glucocorticoids can exacerbate fungal infections by suppressing the immune response. While caution is advised in patients with diabetes mellitus, myasthenia gravis, and glaucoma, the presence of a systemic fungal infection warrants questioning the use of glucocorticoids to prevent worsening of the fungal infection.
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