a nurse is preparing to administer acetaminophen 650 mg po every 6 hr prn for pain the amount available is acetaminophen liquid 500 mg5 ml how many m

ATI RN

ATI Pharmacology

1. A patient is prescribed acetaminophen 650 mg PO every 6 hr PRN for pain. The available acetaminophen liquid is 500 mg/5 mL. How many mL should the nurse 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 nurse should administer 6.5 mL of acetaminophen liquid per dose to provide the prescribed 650 mg of acetaminophen. Choice B, 7 mL, is incorrect because the correct calculation results in 6.5 mL. Choice C, 5 mL, is incorrect as it is the concentration of the acetaminophen liquid, not the final volume needed. Choice D, 8 mL, is incorrect because it does not reflect the accurate calculation based on the prescription and concentration.

2. A healthcare provider is caring for a group of clients who are not protected against Varicella. The healthcare provider should prepare to administer the Varicella vaccine at this time to which of the following clients?

A. 24-year-old woman in the third trimester of pregnancy
B. 12-year-old child who has a severe allergy to neomycin
C. 2-month-old infant who has no health problems
D. 32-year-old man who has essential hypertension

Correct answer: D

Rationale: The correct answer is the 32-year-old man who has essential hypertension. Individuals who did not receive two doses of the varicella vaccine earlier in life should be immunized. Essential hypertension is not a contraindication for this vaccine, making it safe to administer to this client. Choice A is incorrect because administering the Varicella vaccine is contraindicated during pregnancy due to the risk of transmission to the fetus. Choice B is incorrect because a severe allergy to neomycin is a contraindication to the Varicella vaccine, which contains a trace amount of neomycin. Choice C is incorrect because the Varicella vaccine is not recommended for infants under 12 months of age.

3. What is a severe adverse effect of iron supplementation?

A. Seizures
B. Dry mouth
C. Edema
D. Serotonin syndrome

Correct answer: A

Rationale: A severe adverse effect of iron supplementation is seizures. Iron toxicity can lead to symptoms such as abdominal pain, vomiting, bloody diarrhea, lethargy, and in severe cases, seizures. It is important for individuals taking iron supplements to follow recommended dosages to prevent adverse effects.

4. A client is receiving vancomycin. Which of the following laboratory results should be monitored to evaluate the therapeutic effect of this medication?

A. BUN
B. Creatinine
C. Hemoglobin
D. White blood cell count

Correct answer: B

Rationale: Corrected Rationale: Creatinine levels should be monitored to evaluate vancomycin's effect on kidney function. Vancomycin can be nephrotoxic, so monitoring creatinine levels helps assess renal function and ensure that the medication is not causing harm to the kidneys. Monitoring BUN (choice A) is important for assessing kidney function but is not as specific as monitoring creatinine levels. Hemoglobin (choice C) and white blood cell count (choice D) are not directly related to evaluating the therapeutic effect of vancomycin.

5. What is the antidote for copper toxicity?

A. Glucagon
B. Aminocaproic acid
C. Atropine
D. Penicillamine

Correct answer: D

Rationale: Penicillamine is the specific chelating agent used for copper toxicity. It forms stable complexes with copper, which are then excreted in the urine. Glucagon is used for treating hypoglycemia, aminocaproic acid is used to treat bleeding disorders, and atropine is used as an antidote for certain types of poisoning, such as organophosphate toxicity.