Chamberlain NR 565 Final Exam 2026/2027 Advanced
Pharmacology Fundamentals Actual Exam Questions Verified
Answers Study Guide Grade A
1. What is the negative feedback system in hypothyroidism?
A. Production of T3 and T4 by the hypothalamus and pituitary gland
B. TRH from the hypothalamus controls TSH release; TSH acts as the gauge for the
hypothalamus to determine TRH and TSH needs
C. Direct stimulation of the thyroid gland
D. Inhibition of all thyroid hormones
Correct Answer: B
Rationale: In the negative feedback system, TRH from the hypothalamus stimulates TSH
release; TSH levels signal the hypothalamus to adjust TRH production.
2. What is the diagnostic criteria for diabetes mellitus using casual plasma glucose?
A. Casual plasma glucose ≥100 mg/dL
B. Casual plasma glucose ≥126 mg/dL
C. Casual plasma glucose ≥200 mg/dL with acute symptoms
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D. Casual plasma glucose ≥140 mg/dL
Correct Answer: C
Rationale: Diabetes is diagnosed with casual plasma glucose ≥200 mg/dL accompanied
by acute symptoms of hyperglycemia.
3. What is the diagnostic criteria for diabetes mellitus using fasting plasma glucose?
A. Fasting plasma glucose ≥100 mg/dL after 8 hours
B. Fasting plasma glucose ≥126 mg/dL after 8 hours
C. Fasting plasma glucose ≥140 mg/dL after 8 hours
D. Fasting plasma glucose ≥200 mg/dL after 8 hours
Correct Answer: B
Rationale: Diabetes is diagnosed with fasting plasma glucose ≥126 mg/dL after at least 8
hours of fasting.
4. What is the diagnostic criteria for diabetes mellitus using the oral glucose tolerance
test?
A. 2-hour post-load plasma glucose ≥140 mg/dL
B. 2-hour post-load plasma glucose ≥180 mg/dL
C. 2-hour post-load plasma glucose ≥200 mg/dL
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D. 2-hour post-load plasma glucose ≥126 mg/dL
Correct Answer: C
Rationale: Diabetes is diagnosed with 2-hour post-load plasma glucose ≥200 mg/dL
using a 75 g glucose load.
5. What is the diagnostic criteria for diabetes mellitus using HbA1c?
A. HbA1c ≥5.7%
B. HbA1c ≥6.0%
C. HbA1c ≥6.5%
D. HbA1c ≥7.0%
Correct Answer: C
Rationale: Diabetes is diagnosed with HbA1c ≥6.5%.
6. What are the diagnostic criteria for prediabetes using the oral glucose tolerance
test?
A. 2-hour plasma glucose 100-125 mg/dL
B. 2-hour plasma glucose 140-199 mg/dL
C. 2-hour plasma glucose 200-250 mg/dL
D. 2-hour plasma glucose 126-139 mg/dL
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Correct Answer: B
Rationale: Prediabetes (IGT) is diagnosed with 2-hour plasma glucose 140-199 mg/dL
after a standard glucose load.
7. What is the diagnostic criteria for prediabetes using HbA1c?
A. HbA1c 5.0-5.6%
B. HbA1c 5.7-6.4%
C. HbA1c 6.5-7.0%
D. HbA1c 4.5-5.6%
Correct Answer: B
Rationale: Prediabetes is diagnosed with HbA1c 5.7-6.4%.
8. What is Step 1 treatment for diabetes?
A. Insulin alone
B. Lifestyle changes and metformin
C. Sulfonylureas alone
D. GLP-1 agonists alone
Correct Answer: B
Rationale: Step 1 diabetes treatment is lifestyle changes combined with metformin.