APEA 3P — HIGH-YIELD ADVANCED TEST BANK
110 Difficult Primary Care NP-Style MCQs
Original Questions • Correct Answers • Detailed Rationales
SECTION 1 — DIABETES & ENDOCRINE
1.
A 48-year-old patient has a fasting plasma glucose of 129 mg/dL on two separate mornings. He
has no symptoms of hyperglycemia. Which interpretation is most appropriate?
A. Normal glucose regulation
B. Prediabetes
C. Diabetes mellitus
D. Impaired glucose tolerance only
Correct Answer: C. Diabetes mellitus
Rationale: A fasting plasma glucose of ≥126 mg/dL on appropriate testing is in the diabetic
range. In an asymptomatic patient, the diagnosis generally requires confirmation with repeat
testing or another diagnostic test unless unequivocal hyperglycemia is present. The uploaded
material specifically emphasizes confirmation of elevated fasting glucose. Current ADA
guidance also emphasizes appropriate laboratory testing and confirmation when indicated.
2.
A patient has an A1C of 6.8% but repeated fasting glucose values are 105 mg/dL. Which is the
best next consideration?
A. Diagnose type 1 diabetes
B. Assume the A1C is always more accurate
C. Evaluate for conditions causing discordance between A1C and glycemia
D. Diagnose hypoglycemia
Correct Answer: C. Evaluate for conditions causing discordance between A1C and
glycemia
,Rationale: Significant discordance between A1C and glucose measurements should prompt
evaluation for altered red-cell turnover, hemoglobin variants, pregnancy, G6PD deficiency, HIV,
or other factors affecting A1C interpretation. ADA 2026 specifically addresses this issue.
3.
A newly diagnosed patient with type 2 diabetes asks which medication is traditionally considered
foundational first-line pharmacotherapy when there is no contraindication and no compelling
indication for another agent. Which is the best answer?
A. Metformin
B. Glyburide
C. Regular insulin
D. Acarbose
Correct Answer: A. Metformin
Rationale: Metformin remains a foundational glucose-lowering therapy in many patients with
type 2 diabetes, although modern treatment is increasingly individualized according to
cardiovascular, renal, obesity, and hypoglycemia considerations. The study guide identifies
metformin as first-line treatment.
4.
A patient taking metformin reports several weeks of abdominal discomfort, diarrhea, and
excessive gas. Which adverse effect most strongly supports metformin as the cause?
A. Severe hypoglycemia
B. Gastrointestinal intolerance
C. Hyperkalemia
D. Gingival hyperplasia
Correct Answer: B. Gastrointestinal intolerance
Rationale: Gastrointestinal adverse effects—including diarrhea and flatulence—are
characteristic of metformin. The uploaded exam material specifically highlights diarrhea and
flatulence as clues.
5.
,Which medication class carries particularly high risk for medication-induced hypoglycemia in an
older adult with type 2 diabetes?
A. Sulfonylureas
B. Biguanides
C. SGLT2 inhibitors
D. Alpha-glucosidase inhibitors
Correct Answer: A. Sulfonylureas
Rationale: Sulfonylureas stimulate insulin secretion independently of current glucose levels and
can cause significant hypoglycemia. The uploaded study guide specifically identifies glyburide,
glipizide, and glimepiride.
6.
A patient using basal insulin has consistently elevated fasting morning glucose values. Which
measurement is most useful when deciding whether the basal insulin dose needs adjustment?
A. Post-lunch glucose
B. Bedtime glucose only
C. Morning fasting glucose
D. Random glucose after exercise
Correct Answer: C. Morning fasting glucose
Rationale: Basal insulin primarily addresses hepatic glucose production between meals and
overnight. Persistent fasting hyperglycemia therefore provides important information when
titrating basal insulin. This concept is directly represented in the uploaded question set.
7.
A patient with type 2 diabetes has newly diagnosed albuminuria. Which medication class is
particularly valuable because of its renal protective effects?
A. ACE inhibitor
B. Short-acting nitrate
C. Thiazide only
D. H1 antihistamine
Correct Answer: A. ACE inhibitor
, Rationale: Renin-angiotensin system blockade is particularly useful in patients with diabetes
and albuminuric kidney disease when appropriate. The uploaded material emphasizes ACE-
inhibitor antiproteinuric effects.
8.
A patient with type 2 diabetes presents with an A1C of 9.8%, polyuria, polydipsia, and a random
glucose of 352 mg/dL. Which management consideration is most appropriate?
A. Lifestyle counseling alone
B. Immediate initiation of appropriate glucose-lowering therapy, potentially including insulin
C. Stop all medications and repeat the glucose in one year
D. Treat only with a sulfonylurea regardless of symptoms
Correct Answer: B. Immediate initiation of appropriate glucose-lowering therapy,
potentially including insulin
Rationale: Marked symptomatic hyperglycemia requires prompt treatment rather than lifestyle
therapy alone. The uploaded material specifically describes symptomatic glucose around 352
mg/dL as a situation in which insulin should be considered.
9.
A teenager with obesity has thickened, velvety hyperpigmented skin in the posterior neck folds.
What does this finding most strongly suggest?
A. Iron deficiency
B. Insulin resistance
C. Hypothyroidism
D. Cushing syndrome exclusively
Correct Answer: B. Insulin resistance
Rationale: Acanthosis nigricans is strongly associated with insulin resistance and should prompt
assessment for metabolic risk, particularly in an overweight adolescent.
10.
110 Difficult Primary Care NP-Style MCQs
Original Questions • Correct Answers • Detailed Rationales
SECTION 1 — DIABETES & ENDOCRINE
1.
A 48-year-old patient has a fasting plasma glucose of 129 mg/dL on two separate mornings. He
has no symptoms of hyperglycemia. Which interpretation is most appropriate?
A. Normal glucose regulation
B. Prediabetes
C. Diabetes mellitus
D. Impaired glucose tolerance only
Correct Answer: C. Diabetes mellitus
Rationale: A fasting plasma glucose of ≥126 mg/dL on appropriate testing is in the diabetic
range. In an asymptomatic patient, the diagnosis generally requires confirmation with repeat
testing or another diagnostic test unless unequivocal hyperglycemia is present. The uploaded
material specifically emphasizes confirmation of elevated fasting glucose. Current ADA
guidance also emphasizes appropriate laboratory testing and confirmation when indicated.
2.
A patient has an A1C of 6.8% but repeated fasting glucose values are 105 mg/dL. Which is the
best next consideration?
A. Diagnose type 1 diabetes
B. Assume the A1C is always more accurate
C. Evaluate for conditions causing discordance between A1C and glycemia
D. Diagnose hypoglycemia
Correct Answer: C. Evaluate for conditions causing discordance between A1C and
glycemia
,Rationale: Significant discordance between A1C and glucose measurements should prompt
evaluation for altered red-cell turnover, hemoglobin variants, pregnancy, G6PD deficiency, HIV,
or other factors affecting A1C interpretation. ADA 2026 specifically addresses this issue.
3.
A newly diagnosed patient with type 2 diabetes asks which medication is traditionally considered
foundational first-line pharmacotherapy when there is no contraindication and no compelling
indication for another agent. Which is the best answer?
A. Metformin
B. Glyburide
C. Regular insulin
D. Acarbose
Correct Answer: A. Metformin
Rationale: Metformin remains a foundational glucose-lowering therapy in many patients with
type 2 diabetes, although modern treatment is increasingly individualized according to
cardiovascular, renal, obesity, and hypoglycemia considerations. The study guide identifies
metformin as first-line treatment.
4.
A patient taking metformin reports several weeks of abdominal discomfort, diarrhea, and
excessive gas. Which adverse effect most strongly supports metformin as the cause?
A. Severe hypoglycemia
B. Gastrointestinal intolerance
C. Hyperkalemia
D. Gingival hyperplasia
Correct Answer: B. Gastrointestinal intolerance
Rationale: Gastrointestinal adverse effects—including diarrhea and flatulence—are
characteristic of metformin. The uploaded exam material specifically highlights diarrhea and
flatulence as clues.
5.
,Which medication class carries particularly high risk for medication-induced hypoglycemia in an
older adult with type 2 diabetes?
A. Sulfonylureas
B. Biguanides
C. SGLT2 inhibitors
D. Alpha-glucosidase inhibitors
Correct Answer: A. Sulfonylureas
Rationale: Sulfonylureas stimulate insulin secretion independently of current glucose levels and
can cause significant hypoglycemia. The uploaded study guide specifically identifies glyburide,
glipizide, and glimepiride.
6.
A patient using basal insulin has consistently elevated fasting morning glucose values. Which
measurement is most useful when deciding whether the basal insulin dose needs adjustment?
A. Post-lunch glucose
B. Bedtime glucose only
C. Morning fasting glucose
D. Random glucose after exercise
Correct Answer: C. Morning fasting glucose
Rationale: Basal insulin primarily addresses hepatic glucose production between meals and
overnight. Persistent fasting hyperglycemia therefore provides important information when
titrating basal insulin. This concept is directly represented in the uploaded question set.
7.
A patient with type 2 diabetes has newly diagnosed albuminuria. Which medication class is
particularly valuable because of its renal protective effects?
A. ACE inhibitor
B. Short-acting nitrate
C. Thiazide only
D. H1 antihistamine
Correct Answer: A. ACE inhibitor
, Rationale: Renin-angiotensin system blockade is particularly useful in patients with diabetes
and albuminuric kidney disease when appropriate. The uploaded material emphasizes ACE-
inhibitor antiproteinuric effects.
8.
A patient with type 2 diabetes presents with an A1C of 9.8%, polyuria, polydipsia, and a random
glucose of 352 mg/dL. Which management consideration is most appropriate?
A. Lifestyle counseling alone
B. Immediate initiation of appropriate glucose-lowering therapy, potentially including insulin
C. Stop all medications and repeat the glucose in one year
D. Treat only with a sulfonylurea regardless of symptoms
Correct Answer: B. Immediate initiation of appropriate glucose-lowering therapy,
potentially including insulin
Rationale: Marked symptomatic hyperglycemia requires prompt treatment rather than lifestyle
therapy alone. The uploaded material specifically describes symptomatic glucose around 352
mg/dL as a situation in which insulin should be considered.
9.
A teenager with obesity has thickened, velvety hyperpigmented skin in the posterior neck folds.
What does this finding most strongly suggest?
A. Iron deficiency
B. Insulin resistance
C. Hypothyroidism
D. Cushing syndrome exclusively
Correct Answer: B. Insulin resistance
Rationale: Acanthosis nigricans is strongly associated with insulin resistance and should prompt
assessment for metabolic risk, particularly in an overweight adolescent.
10.
