PTCB Exam | 212 Comprehensive Questions
and Answers with Rationale | New Update
2026-2027 | Graded A+
Pharmacy and Pharmacology - Comprehensive Question
Question 1
The directions for use for Timoptic is 2 gtts os bid. What is the meaning of os?
A. Right eye
B. Left eye
C. Both eyes
D. Each eye
Correct Answer: B. Left eye
Expert Rationale: "OS" stands for Oculus Sinister, which is Latin for left eye. "OD"
= right eye, "OU" = both eyes. Timoptic (timolol) is a beta-blocker eye drop used
for glaucoma. The directions mean: "Instill 2 drops into the left eye twice daily."
Question 2
What is the Latin abbreviation for "after meals"?
A. ac
B. pc
C. hs
D. prn
Correct Answer: B. pc
Expert Rationale: "pc" stands for post cibum (after meals). "ac" = before meals,
"hs" = at bedtime, "prn" = as needed. This abbreviation is commonly used in
,medication directions to indicate when medications should be taken relative to
meals.
Question 3
An order reads "Tylenol 325mg pr q 4 h prn". What dosage form should be
dispensed?
A. Tablets
B. Capsules
C. Suppositories
D. Liquid
Correct Answer: C. Suppositories
Expert Rationale: "pr" stands for per rectum (rectally). Tylenol (acetaminophen)
suppositories are used when patients cannot take oral medications (vomiting,
NPO status, etc.). The abbreviation "pr" indicates the route of administration is
rectal.
Question 4
A pharmacy technician repacks bulk solid dosage forms into unit-dosed
packages. What expiration date will appear on the package?
A. Full manufacturer's expiration date
B. 50% of labeled expiration date to a maximum of 1 year
C. 75% of labeled expiration date to a maximum of 2 years
D. 30 days from repackaging date
Correct Answer: B. 50% of labeled expiration date to a maximum of 1 year
Expert Rationale: When repackaging medications into unit-dose packaging, the
expiration date is 50% of the remaining manufacturer's expiration date or
a maximum of 1 year from the repackaging date—whichever is shorter. This is to
ensure stability and safety of the repackaged product.
,Question 5
The expiration date on a bottle of Cipro 500mg tablets states 4/09. When does
this drug expire?
A. April 1, 2009
B. April 15, 2009
C. Midnight 4/30/09
D. May 1, 2009
Correct Answer: C. Midnight 4/30/09
Expert Rationale: The expiration date "4/09" means the drug expires at midnight
on the last day of the month shown (April 30, 2009). It is not the first day of the
month. The medication should not be used after this date.
Question 6
A physician prescribes Ceclor 375mg po bid. What is wrong with this
prescription?
A. Wrong dosage form
B. Wrong route of administration
C. The Rx lacks a duration of therapy
D. Wrong dose strength
Correct Answer: C. The Rx lacks a duration of therapy
Expert Rationale: Ceclor (cefaclor) is an antibiotic. The prescription states: Ceclor
375mg, po (by mouth), bid (twice daily). Missing: Duration of therapy (e.g., "x 10
days"). Antibiotics require a specified duration to ensure appropriate treatment
and prevent resistance.
DOSAGE FORMS AND PHARMACEUTICAL PREPARATIONS
Question 7
, Which dosage form is formulated to dissolve in the intestine rather than the
stomach?
A. Sugar-coated tablets
B. Film-coated tablets
C. Enteric-coated tablets
D. Chewable tablets
Correct Answer: C. Enteric-coated tablets
Expert Rationale: Enteric-coated tablets are designed to resist stomach acid (pH
1-3) and dissolve in the intestine (pH 5-7). This protects the drug from gastric
degradation and protects the stomach from irritating drugs (e.g., aspirin).
Common enteric-coated drugs include aspirin (EC), omeprazole, and mesalamine.
Question 8
What is the term for the process by which substances are taken up and
transported to the bloodstream?
A. Distribution
B. Metabolism
C. Absorption
D. Elimination
Correct Answer: C. Absorption
Expert Rationale: Pharmacokinetics has four phases:
1. Absorption – Drug enters the bloodstream
2. Distribution – Drug travels to the site of action
3. Metabolism – Drug is broken down (usually liver)
4. Elimination/Excretion – Drug leaves the body (usually kidneys)
Absorption is the process of the drug entering circulation from the site of
administration.
and Answers with Rationale | New Update
2026-2027 | Graded A+
Pharmacy and Pharmacology - Comprehensive Question
Question 1
The directions for use for Timoptic is 2 gtts os bid. What is the meaning of os?
A. Right eye
B. Left eye
C. Both eyes
D. Each eye
Correct Answer: B. Left eye
Expert Rationale: "OS" stands for Oculus Sinister, which is Latin for left eye. "OD"
= right eye, "OU" = both eyes. Timoptic (timolol) is a beta-blocker eye drop used
for glaucoma. The directions mean: "Instill 2 drops into the left eye twice daily."
Question 2
What is the Latin abbreviation for "after meals"?
A. ac
B. pc
C. hs
D. prn
Correct Answer: B. pc
Expert Rationale: "pc" stands for post cibum (after meals). "ac" = before meals,
"hs" = at bedtime, "prn" = as needed. This abbreviation is commonly used in
,medication directions to indicate when medications should be taken relative to
meals.
Question 3
An order reads "Tylenol 325mg pr q 4 h prn". What dosage form should be
dispensed?
A. Tablets
B. Capsules
C. Suppositories
D. Liquid
Correct Answer: C. Suppositories
Expert Rationale: "pr" stands for per rectum (rectally). Tylenol (acetaminophen)
suppositories are used when patients cannot take oral medications (vomiting,
NPO status, etc.). The abbreviation "pr" indicates the route of administration is
rectal.
Question 4
A pharmacy technician repacks bulk solid dosage forms into unit-dosed
packages. What expiration date will appear on the package?
A. Full manufacturer's expiration date
B. 50% of labeled expiration date to a maximum of 1 year
C. 75% of labeled expiration date to a maximum of 2 years
D. 30 days from repackaging date
Correct Answer: B. 50% of labeled expiration date to a maximum of 1 year
Expert Rationale: When repackaging medications into unit-dose packaging, the
expiration date is 50% of the remaining manufacturer's expiration date or
a maximum of 1 year from the repackaging date—whichever is shorter. This is to
ensure stability and safety of the repackaged product.
,Question 5
The expiration date on a bottle of Cipro 500mg tablets states 4/09. When does
this drug expire?
A. April 1, 2009
B. April 15, 2009
C. Midnight 4/30/09
D. May 1, 2009
Correct Answer: C. Midnight 4/30/09
Expert Rationale: The expiration date "4/09" means the drug expires at midnight
on the last day of the month shown (April 30, 2009). It is not the first day of the
month. The medication should not be used after this date.
Question 6
A physician prescribes Ceclor 375mg po bid. What is wrong with this
prescription?
A. Wrong dosage form
B. Wrong route of administration
C. The Rx lacks a duration of therapy
D. Wrong dose strength
Correct Answer: C. The Rx lacks a duration of therapy
Expert Rationale: Ceclor (cefaclor) is an antibiotic. The prescription states: Ceclor
375mg, po (by mouth), bid (twice daily). Missing: Duration of therapy (e.g., "x 10
days"). Antibiotics require a specified duration to ensure appropriate treatment
and prevent resistance.
DOSAGE FORMS AND PHARMACEUTICAL PREPARATIONS
Question 7
, Which dosage form is formulated to dissolve in the intestine rather than the
stomach?
A. Sugar-coated tablets
B. Film-coated tablets
C. Enteric-coated tablets
D. Chewable tablets
Correct Answer: C. Enteric-coated tablets
Expert Rationale: Enteric-coated tablets are designed to resist stomach acid (pH
1-3) and dissolve in the intestine (pH 5-7). This protects the drug from gastric
degradation and protects the stomach from irritating drugs (e.g., aspirin).
Common enteric-coated drugs include aspirin (EC), omeprazole, and mesalamine.
Question 8
What is the term for the process by which substances are taken up and
transported to the bloodstream?
A. Distribution
B. Metabolism
C. Absorption
D. Elimination
Correct Answer: C. Absorption
Expert Rationale: Pharmacokinetics has four phases:
1. Absorption – Drug enters the bloodstream
2. Distribution – Drug travels to the site of action
3. Metabolism – Drug is broken down (usually liver)
4. Elimination/Excretion – Drug leaves the body (usually kidneys)
Absorption is the process of the drug entering circulation from the site of
administration.
