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ATI RN PHARMACOLOGY PROCTORED EXAM PREP 2026 SOLVED QUESTIONS &
ANSWERS WITH DETAILED RATIONALES VERIFIED 100 %
ATI RN Pharmacology Proctored Exam — Questions with Detailed Rationales
SECTION 1: PHARMACOKINETICS, PHARMACODYNAMICS & MEDICATION SAFETY
(25 Questions)
1. A nurse is preparing to administer a medication to a client who has a history of
renal failure. Which pharmacokinetic process should the nurse expect to be most
affected?
A) Absorption
B) Distribution
C) Metabolism
D) Excretion
Rationale: The kidneys are the primary organs responsible for the excretion of drugs
and their metabolites. Impaired renal function leads to decreased drug clearance and a
high risk for toxicity.
2. A nurse is preparing to administer 0.5 g of a medication. The available dose is 250
mg tablets. How many tablets should the nurse administer?
A) 0.5 tablets
B) 1 tablet
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C) 2 tablets
D) 4 tablets
Rationale: First, convert grams to milligrams: 0.5 g = 500 mg. Divide the ordered dose
(500 mg) by the available dose (250 mg) to get 2 tablets.
3. A nurse is reviewing a client's medication record and notes a prescription for a
"trough level." When should the nurse schedule the blood draw?
A) 30 minutes after the dose is administered
B) Exactly mid-way between doses
C) 15 minutes before the next dose
D) 2 hours after the start of the infusion
Rationale: The trough level represents the lowest concentration of the drug in the
bloodstream. It is measured immediately (usually 15–30 minutes) before the next
scheduled dose.
4. A nurse is preparing to administer an intramuscular (IM) injection to an adult
client who has a BMI of 32. Which needle length should the nurse select?
A) 5/8 inch
B) 1 inch
C) 1 1/2 inches
D) 2 inches
Rationale: For an obese client, a longer needle (1.5 inches) is required to ensure the
medication reaches the muscle tissue rather than staying in the subcutaneous fat.
5. A nurse is preparing to administer phenobarbital to a client. Which
pharmacokinetic concept explains why this drug has a long duration of action?
A) First-pass effect
B) High lipid solubility
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C) Protein binding
D) Half-life
Rationale: Half-life is the time it takes for the concentration of a drug in the body to
reduce by 50%. Phenobarbital has a long half-life, meaning it stays in the system longer
and requires less frequent dosing.
6. A nurse is teaching a client about the "First-pass effect." Which route of
administration is most affected by this process?
A) Intravenous
B) Sublingual
C) Oral
D) Transdermal
Rationale: Oral medications are absorbed in the GI tract and travel to the liver via the
portal vein. The liver may metabolize a large portion of the drug before it ever reaches
systemic circulation.
7. A nurse is calculating the IV flow rate for a client who is to receive 1,000 mL of
0.9% Sodium Chloride over 8 hours. The drop factor is 15 gtt/mL. What is the flow
rate in gtt/min? (Round to the nearest whole number).
A) 21 gtt/min
B) 31 gtt/min
C) 42 gtt/min
D) 63 gtt/min
Rationale: Total volume (1,000 mL) ÷ total time in minutes (8 hr × 60 = 480 min) × drop
factor (15 gtt/mL) = 31.25 gtt/min, which rounds to 31 gtt/min.
8. A nurse is reviewing the pharmacokinetic properties of a new medication. Which
of the following best describes the process by which a drug is chemically
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converted in the body to a more water-soluble compound for excretion?
A) Absorption
B) Distribution
C) Metabolism
D) Excretion
Rationale: Metabolism (biotransformation) primarily occurs in the liver and converts
lipid-soluble drugs into water-soluble metabolites for renal or biliary excretion.
9. A nurse is preparing to administer a medication to a client. Which action best
fulfills the "Right Client" principle of safe medication administration?
A) Asking the client to state their name and comparing it to the medication
administration record
B) Checking the client's identification band and comparing the name and birth date to
the medication administration record
C) Verifying the medication with the nurse who prepared it
D) Asking the client to state the name of the medication before administering it
Rationale: Using two identifiers, such as name and birth date, by checking the
identification band against the medication administration record is the standard
method to confirm the right client and reduce errors.
10. A client refuses to take a prescribed medication. What is the nurse's priority
action?
A) Administer the medication by crushing it and mixing it with food
B) Document the refusal and notify the provider
C) Administer the medication anyway because it was prescribed
D) Ask the client to sign a refusal form and take no further action
Rationale: A competent client has the right to refuse medication. The nurse must
respect this right, document the refusal, and notify the provider so the treatment plan
can be reassessed.
ATI RN PHARMACOLOGY PROCTORED EXAM PREP 2026 SOLVED QUESTIONS &
ANSWERS WITH DETAILED RATIONALES VERIFIED 100 %
ATI RN Pharmacology Proctored Exam — Questions with Detailed Rationales
SECTION 1: PHARMACOKINETICS, PHARMACODYNAMICS & MEDICATION SAFETY
(25 Questions)
1. A nurse is preparing to administer a medication to a client who has a history of
renal failure. Which pharmacokinetic process should the nurse expect to be most
affected?
A) Absorption
B) Distribution
C) Metabolism
D) Excretion
Rationale: The kidneys are the primary organs responsible for the excretion of drugs
and their metabolites. Impaired renal function leads to decreased drug clearance and a
high risk for toxicity.
2. A nurse is preparing to administer 0.5 g of a medication. The available dose is 250
mg tablets. How many tablets should the nurse administer?
A) 0.5 tablets
B) 1 tablet
, Page 2 of 86
C) 2 tablets
D) 4 tablets
Rationale: First, convert grams to milligrams: 0.5 g = 500 mg. Divide the ordered dose
(500 mg) by the available dose (250 mg) to get 2 tablets.
3. A nurse is reviewing a client's medication record and notes a prescription for a
"trough level." When should the nurse schedule the blood draw?
A) 30 minutes after the dose is administered
B) Exactly mid-way between doses
C) 15 minutes before the next dose
D) 2 hours after the start of the infusion
Rationale: The trough level represents the lowest concentration of the drug in the
bloodstream. It is measured immediately (usually 15–30 minutes) before the next
scheduled dose.
4. A nurse is preparing to administer an intramuscular (IM) injection to an adult
client who has a BMI of 32. Which needle length should the nurse select?
A) 5/8 inch
B) 1 inch
C) 1 1/2 inches
D) 2 inches
Rationale: For an obese client, a longer needle (1.5 inches) is required to ensure the
medication reaches the muscle tissue rather than staying in the subcutaneous fat.
5. A nurse is preparing to administer phenobarbital to a client. Which
pharmacokinetic concept explains why this drug has a long duration of action?
A) First-pass effect
B) High lipid solubility
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C) Protein binding
D) Half-life
Rationale: Half-life is the time it takes for the concentration of a drug in the body to
reduce by 50%. Phenobarbital has a long half-life, meaning it stays in the system longer
and requires less frequent dosing.
6. A nurse is teaching a client about the "First-pass effect." Which route of
administration is most affected by this process?
A) Intravenous
B) Sublingual
C) Oral
D) Transdermal
Rationale: Oral medications are absorbed in the GI tract and travel to the liver via the
portal vein. The liver may metabolize a large portion of the drug before it ever reaches
systemic circulation.
7. A nurse is calculating the IV flow rate for a client who is to receive 1,000 mL of
0.9% Sodium Chloride over 8 hours. The drop factor is 15 gtt/mL. What is the flow
rate in gtt/min? (Round to the nearest whole number).
A) 21 gtt/min
B) 31 gtt/min
C) 42 gtt/min
D) 63 gtt/min
Rationale: Total volume (1,000 mL) ÷ total time in minutes (8 hr × 60 = 480 min) × drop
factor (15 gtt/mL) = 31.25 gtt/min, which rounds to 31 gtt/min.
8. A nurse is reviewing the pharmacokinetic properties of a new medication. Which
of the following best describes the process by which a drug is chemically
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converted in the body to a more water-soluble compound for excretion?
A) Absorption
B) Distribution
C) Metabolism
D) Excretion
Rationale: Metabolism (biotransformation) primarily occurs in the liver and converts
lipid-soluble drugs into water-soluble metabolites for renal or biliary excretion.
9. A nurse is preparing to administer a medication to a client. Which action best
fulfills the "Right Client" principle of safe medication administration?
A) Asking the client to state their name and comparing it to the medication
administration record
B) Checking the client's identification band and comparing the name and birth date to
the medication administration record
C) Verifying the medication with the nurse who prepared it
D) Asking the client to state the name of the medication before administering it
Rationale: Using two identifiers, such as name and birth date, by checking the
identification band against the medication administration record is the standard
method to confirm the right client and reduce errors.
10. A client refuses to take a prescribed medication. What is the nurse's priority
action?
A) Administer the medication by crushing it and mixing it with food
B) Document the refusal and notify the provider
C) Administer the medication anyway because it was prescribed
D) Ask the client to sign a refusal form and take no further action
Rationale: A competent client has the right to refuse medication. The nurse must
respect this right, document the refusal, and notify the provider so the treatment plan
can be reassessed.
