2026/2027
NSC Defensive Driving Course Exam
Comprehensive Study Guide and
Practice Review Manual 2026/2027
Edition for Test Preparation and
Assessment Success
Question 1:
A patient taking digoxin is found to have decreased serum digoxin levels. Which of
the following is a likely contributing factor?
A. Antacids use
B. High potassium intake
C. Dehydration
D. Increased protein intake
Correct Answer: A. Antacids use
Rationale:
Antacids can reduce the absorption of digoxin in the gastrointestinal tract, leading to
decreased serum levels and reduced therapeutic effect. This interaction occurs
because antacids alter gastric pH and interfere with drug dissolution. High potassium
does not directly reduce digoxin levels, though it may affect toxicity risk. Dehydration
and protein intake have no clinically significant effect on digoxin absorption.
Question 2:
A patient prescribed phenazopyridine (Pyridium) for a urinary tract infection should
be monitored for which potential adverse effect?
A. Hemolytic anemia
B. Hyperkalemia
C. Liver failure
D. Respiratory depression
Correct Answer: A. Hemolytic anemia
Rationale:
Phenazopyridine is a urinary analgesic that can cause hemolytic anemia, especially in
,2026/2027
patients with G6PD deficiency. It is generally used short-term for symptomatic relief.
The other options are not commonly associated with this medication.
Question 3:
Polycystic ovary syndrome (PCOS) is most commonly associated with which
laboratory or clinical finding?
A. Decreased androgen levels
B. Increased insulin and androgen levels
C. Decreased estrogen only
D. Low cortisol levels
Correct Answer: B. Increased insulin and androgen levels
Rationale:
PCOS is characterized by insulin resistance leading to hyperinsulinemia, which
stimulates ovarian androgen production. This results in hirsutism, irregular
menstruation, and metabolic abnormalities. Decreased androgen or cortisol levels are
not typical features.
Question 4:
Which medications are considered safe and commonly used for managing
hypertension during pregnancy?
A. ACE inhibitors and ARBs
B. Methyldopa, labetalol, nifedipine, hydralazine
C. Beta blockers only
D. Diuretics only
Correct Answer: B. Methyldopa, labetalol, nifedipine, hydralazine
Rationale:
These medications are considered safe in pregnancy due to their favorable fetal safety
profiles. ACE inhibitors and ARBs are contraindicated due to teratogenic effects.
Diuretics and some beta blockers are used cautiously depending on clinical
circumstances.
Question 5:
A pregnant woman presents with painless, bright red vaginal bleeding. This finding is
most consistent with:
A. Abruptio placentae
B. Placenta previa
,2026/2027
C. Ectopic pregnancy
D. Miscarriage
Correct Answer: B. Placenta previa
Rationale:
Placenta previa typically presents with painless, bright red bleeding in the second or
third trimester. Abruptio placentae is painful and associated with uterine tenderness.
Ectopic pregnancy and miscarriage present earlier in gestation.
Question 6:
Which symptom is most characteristic of rheumatoid arthritis?
A. Sharp, unilateral joint pain
B. Tender, warm, swollen joints
C. Sudden joint locking
D. Joint pain only after exercise
Correct Answer: B. Tender, warm, swollen joints
Rationale:
Rheumatoid arthritis is an autoimmune inflammatory disorder causing symmetrical
joint inflammation with warmth, swelling, and tenderness. Mechanical or activity-
related pain is more typical of osteoarthritis.
Question 7:
Which group of medications is associated with ototoxicity?
A. Beta blockers and ACE inhibitors
B. Aminoglycosides, loop diuretics, NSAIDs
C. Antacids and laxatives
D. Antihistamines only
Correct Answer: B. Aminoglycosides, loop diuretics, NSAIDs
Rationale:
These medications can damage inner ear structures leading to hearing loss or tinnitus.
Aminoglycosides are particularly well-known for this effect. The other drug classes
do not commonly cause ototoxicity.
Question 8:
What is the correct duration of treatment for enterobiasis (pinworm infection)?
, 2026/2027
A. 3 days
B. 1 week
C. 2 weeks
D. 1 month
Correct Answer: C. 2 weeks
Rationale:
Pinworm treatment typically involves an initial dose of antiparasitic medication
followed by a repeat dose in two weeks to eliminate newly hatched worms. This
prevents reinfection.
Question 9:
Mean Corpuscular Volume (MCV) is used primarily to assess:
A. Platelet function
B. Types of anemia
C. White blood cell count
D. Coagulation status
Correct Answer: B. Types of anemia
Rationale:
MCV measures the average size of red blood cells and helps classify anemia as
microcytic, normocytic, or macrocytic. It is essential in diagnosing iron deficiency
and vitamin B12/folate deficiencies.
Question 10:
At what gestational age is Rho(D) immune globulin (RhoGAM) routinely
administered?
A. 12–14 weeks
B. 20–22 weeks
C. 27–28 weeks
D. 32–34 weeks
Correct Answer: C. 27–28 weeks
Rationale:
RhoGAM is administered at 27–28 weeks and again postpartum if the newborn is Rh-
positive to prevent maternal sensitization and hemolytic disease of the newborn.
Question 11:
Janeway lesions are most commonly associated with:
NSC Defensive Driving Course Exam
Comprehensive Study Guide and
Practice Review Manual 2026/2027
Edition for Test Preparation and
Assessment Success
Question 1:
A patient taking digoxin is found to have decreased serum digoxin levels. Which of
the following is a likely contributing factor?
A. Antacids use
B. High potassium intake
C. Dehydration
D. Increased protein intake
Correct Answer: A. Antacids use
Rationale:
Antacids can reduce the absorption of digoxin in the gastrointestinal tract, leading to
decreased serum levels and reduced therapeutic effect. This interaction occurs
because antacids alter gastric pH and interfere with drug dissolution. High potassium
does not directly reduce digoxin levels, though it may affect toxicity risk. Dehydration
and protein intake have no clinically significant effect on digoxin absorption.
Question 2:
A patient prescribed phenazopyridine (Pyridium) for a urinary tract infection should
be monitored for which potential adverse effect?
A. Hemolytic anemia
B. Hyperkalemia
C. Liver failure
D. Respiratory depression
Correct Answer: A. Hemolytic anemia
Rationale:
Phenazopyridine is a urinary analgesic that can cause hemolytic anemia, especially in
,2026/2027
patients with G6PD deficiency. It is generally used short-term for symptomatic relief.
The other options are not commonly associated with this medication.
Question 3:
Polycystic ovary syndrome (PCOS) is most commonly associated with which
laboratory or clinical finding?
A. Decreased androgen levels
B. Increased insulin and androgen levels
C. Decreased estrogen only
D. Low cortisol levels
Correct Answer: B. Increased insulin and androgen levels
Rationale:
PCOS is characterized by insulin resistance leading to hyperinsulinemia, which
stimulates ovarian androgen production. This results in hirsutism, irregular
menstruation, and metabolic abnormalities. Decreased androgen or cortisol levels are
not typical features.
Question 4:
Which medications are considered safe and commonly used for managing
hypertension during pregnancy?
A. ACE inhibitors and ARBs
B. Methyldopa, labetalol, nifedipine, hydralazine
C. Beta blockers only
D. Diuretics only
Correct Answer: B. Methyldopa, labetalol, nifedipine, hydralazine
Rationale:
These medications are considered safe in pregnancy due to their favorable fetal safety
profiles. ACE inhibitors and ARBs are contraindicated due to teratogenic effects.
Diuretics and some beta blockers are used cautiously depending on clinical
circumstances.
Question 5:
A pregnant woman presents with painless, bright red vaginal bleeding. This finding is
most consistent with:
A. Abruptio placentae
B. Placenta previa
,2026/2027
C. Ectopic pregnancy
D. Miscarriage
Correct Answer: B. Placenta previa
Rationale:
Placenta previa typically presents with painless, bright red bleeding in the second or
third trimester. Abruptio placentae is painful and associated with uterine tenderness.
Ectopic pregnancy and miscarriage present earlier in gestation.
Question 6:
Which symptom is most characteristic of rheumatoid arthritis?
A. Sharp, unilateral joint pain
B. Tender, warm, swollen joints
C. Sudden joint locking
D. Joint pain only after exercise
Correct Answer: B. Tender, warm, swollen joints
Rationale:
Rheumatoid arthritis is an autoimmune inflammatory disorder causing symmetrical
joint inflammation with warmth, swelling, and tenderness. Mechanical or activity-
related pain is more typical of osteoarthritis.
Question 7:
Which group of medications is associated with ototoxicity?
A. Beta blockers and ACE inhibitors
B. Aminoglycosides, loop diuretics, NSAIDs
C. Antacids and laxatives
D. Antihistamines only
Correct Answer: B. Aminoglycosides, loop diuretics, NSAIDs
Rationale:
These medications can damage inner ear structures leading to hearing loss or tinnitus.
Aminoglycosides are particularly well-known for this effect. The other drug classes
do not commonly cause ototoxicity.
Question 8:
What is the correct duration of treatment for enterobiasis (pinworm infection)?
, 2026/2027
A. 3 days
B. 1 week
C. 2 weeks
D. 1 month
Correct Answer: C. 2 weeks
Rationale:
Pinworm treatment typically involves an initial dose of antiparasitic medication
followed by a repeat dose in two weeks to eliminate newly hatched worms. This
prevents reinfection.
Question 9:
Mean Corpuscular Volume (MCV) is used primarily to assess:
A. Platelet function
B. Types of anemia
C. White blood cell count
D. Coagulation status
Correct Answer: B. Types of anemia
Rationale:
MCV measures the average size of red blood cells and helps classify anemia as
microcytic, normocytic, or macrocytic. It is essential in diagnosing iron deficiency
and vitamin B12/folate deficiencies.
Question 10:
At what gestational age is Rho(D) immune globulin (RhoGAM) routinely
administered?
A. 12–14 weeks
B. 20–22 weeks
C. 27–28 weeks
D. 32–34 weeks
Correct Answer: C. 27–28 weeks
Rationale:
RhoGAM is administered at 27–28 weeks and again postpartum if the newborn is Rh-
positive to prevent maternal sensitization and hemolytic disease of the newborn.
Question 11:
Janeway lesions are most commonly associated with:
