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VATI PN PHARMACOLOGY ASSESSMENT
2026|WELL REVISED EXAM WITH
PERFECTLY ANSWERED QUESTIONS
A nurse is preparing to administer ampicillin 100mg/kg/day PO every 6 hrs to a
toddler who weighs 22 lb. Available is ampicillin oral suspension 125mg/5mL.
How many mL should the nurse administer per dose? ( Round answer to nearest
whole number.) - correct-answer - 10 mL/dose.
Rationale: Convert toddlers weight from lbs to kg. (1kg=2.2 lbs.)
(toddlers weight) 22 lbs./2.2 = 10 kg.
100mg x 10kg/day= 1000mg/day every 6 hrs
1000mg/125mg x5ml= 40ml per day
40ml /4 doses (every 6 hrs) = 10ml per dose
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A nurse is preparing to reinforce teaching with a newly licensed nurse about
physiologic changes in older adult clients that can alter pharmacokinetics. Which
of the following should the nurse include as an age-related change?
Decreased absorption of oral medications.
Decreased kidney function
Increased gastrointestinal motility
Increased hepatic enzyme function - correct-answer - DECREASED KIDNEY
FUNCTION.
Rationale: An older adult client can experience decreased kidney function, which
can lead to medication toxicity. Therefore, an older adult client might require a
reduced dosage of medication to decrease the risk for adverse effects.
A nurse is reinforcing discharge teaching with a client who has a new prescription
for warfarin. The nurse should instruct the client that which of the following
medications is contraindicated with warfarin therapy?
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Cimetidine
Guaifenesin
Diphenhydramine
Magnesium hydroxide - correct-answer - CIMETIDINE.
Rationale: Cimetidine can increase the anticoagulant effects of warfarin by
inhibiting certain liver enzymes an is therefore contraindicated. The nurse should
instruct the client to contact the provider before taking any medications or herbal
supplements to reduce the risk for adverse effects.
A nurse is reinforcing teaching with a client who has Type 1 Diabetes Mellitus
about the use of over-the-counter supplements. The nurse should include in the
teaching that which of the following supplements can cause hypoglycemia?
Glucosamine
Green Tea
Ginger Root
Garlic - correct-answer - GINGER ROOT.
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Rationale: Ginger root can lower blood glucose and increase the effects of insulin
and other diabetic medications. The nurse should instruct the client to avoid
taking this supplement.
A nurse is reinforcing teaching with a client who is prescribed disulfiram to treat
alcohol use disorder. Which of the following information should the nurse include
in the teaching?
"Cigarettes are contraindicated while taking this medication."
"Monitor your pulse rate daily while taking this medication."
"Avoid using aftershave or cologne while taking this medication."
"Drinking grapefruit juice while taking this medication can cause adverser
effects." - correct-answer - "AVOID USING AFTERSHAVE OR COLOGNE WHILE
TAKING THIS MEDICATION."
Rationale: The nurse should identify that disulfiram causes a build-up of
acetaldehyde in the blood. Within 10 min of consuming or touching alcohol, the
VATI PN PHARMACOLOGY ASSESSMENT
2026|WELL REVISED EXAM WITH
PERFECTLY ANSWERED QUESTIONS
A nurse is preparing to administer ampicillin 100mg/kg/day PO every 6 hrs to a
toddler who weighs 22 lb. Available is ampicillin oral suspension 125mg/5mL.
How many mL should the nurse administer per dose? ( Round answer to nearest
whole number.) - correct-answer - 10 mL/dose.
Rationale: Convert toddlers weight from lbs to kg. (1kg=2.2 lbs.)
(toddlers weight) 22 lbs./2.2 = 10 kg.
100mg x 10kg/day= 1000mg/day every 6 hrs
1000mg/125mg x5ml= 40ml per day
40ml /4 doses (every 6 hrs) = 10ml per dose
,2|Page
A nurse is preparing to reinforce teaching with a newly licensed nurse about
physiologic changes in older adult clients that can alter pharmacokinetics. Which
of the following should the nurse include as an age-related change?
Decreased absorption of oral medications.
Decreased kidney function
Increased gastrointestinal motility
Increased hepatic enzyme function - correct-answer - DECREASED KIDNEY
FUNCTION.
Rationale: An older adult client can experience decreased kidney function, which
can lead to medication toxicity. Therefore, an older adult client might require a
reduced dosage of medication to decrease the risk for adverse effects.
A nurse is reinforcing discharge teaching with a client who has a new prescription
for warfarin. The nurse should instruct the client that which of the following
medications is contraindicated with warfarin therapy?
,3|Page
Cimetidine
Guaifenesin
Diphenhydramine
Magnesium hydroxide - correct-answer - CIMETIDINE.
Rationale: Cimetidine can increase the anticoagulant effects of warfarin by
inhibiting certain liver enzymes an is therefore contraindicated. The nurse should
instruct the client to contact the provider before taking any medications or herbal
supplements to reduce the risk for adverse effects.
A nurse is reinforcing teaching with a client who has Type 1 Diabetes Mellitus
about the use of over-the-counter supplements. The nurse should include in the
teaching that which of the following supplements can cause hypoglycemia?
Glucosamine
Green Tea
Ginger Root
Garlic - correct-answer - GINGER ROOT.
, 4|Page
Rationale: Ginger root can lower blood glucose and increase the effects of insulin
and other diabetic medications. The nurse should instruct the client to avoid
taking this supplement.
A nurse is reinforcing teaching with a client who is prescribed disulfiram to treat
alcohol use disorder. Which of the following information should the nurse include
in the teaching?
"Cigarettes are contraindicated while taking this medication."
"Monitor your pulse rate daily while taking this medication."
"Avoid using aftershave or cologne while taking this medication."
"Drinking grapefruit juice while taking this medication can cause adverser
effects." - correct-answer - "AVOID USING AFTERSHAVE OR COLOGNE WHILE
TAKING THIS MEDICATION."
Rationale: The nurse should identify that disulfiram causes a build-up of
acetaldehyde in the blood. Within 10 min of consuming or touching alcohol, the
