NR 565 Final Exam – Adv Pharmacology Fundamentals – (2026-2027) Actual
Questions & Answers With Revised Rationales (Chamberlain) 100%
Guarantee Pass || Brandnew!!!!!!!!!!!
Which medication class is contraindicated in patients with heart failure due to fluid retention
risk?
A. Biguanides
B. Thiazolidinediones
C. GLP-1 receptor agonists
D. DPP-4 inhibitors
Correct Answer: B
Rationale: Thiazolidinediones (e.g., pioglitazone) cause sodium and water retention by
increasing insulin sensitivity in adipose and muscle tissue. This can worsen heart failure by
increasing preload and edema. Patients with reduced ejection fraction are especially at risk.
Which diabetes medication most directly decreases hepatic glucose production?
A. Insulin
B. Metformin
C. Sulfonylureas
D. SGLT2 inhibitors
Correct Answer: B
Rationale: Metformin primarily reduces hepatic gluconeogenesis, lowering fasting blood
glucose levels. It does not increase insulin secretion, which is why it has a low risk of
hypoglycemia compared to other agents.
What is the most serious adverse effect associated with metformin use?
A. Hypoglycemia
B. Lactic acidosis
C. Ketoacidosis
D. Pancreatitis
Correct Answer: B
Rationale: Metformin can rarely cause lactic acidosis, especially in patients with renal
impairment, hypoxia, or alcoholism. This occurs because impaired clearance leads to
accumulation and increased anaerobic metabolism.
,Which condition increases risk for metformin-associated lactic acidosis?
A. Hypertension
B. Renal impairment
C. Hyperthyroidism
D. Asthma
Correct Answer: B
Rationale: Metformin is excreted by the kidneys. Reduced eGFR leads to drug accumulation
and increases risk of lactic acidosis.
Which insulin characteristic is most accurate?
A. Oral administration
B. Delayed onset of action of days
C. Promotes glucose uptake into cells
D. Blocks hepatic glucose production only
Correct Answer: C
Rationale: Insulin facilitates glucose uptake into muscle and adipose tissue while also
inhibiting hepatic glucose production. It is the only hormone that lowers blood glucose
directly.
Which medication is most likely to cause weight gain in diabetic patients?
A. Metformin
B. GLP-1 agonists
C. Sulfonylureas
D. SGLT2 inhibitors
Correct Answer: C
Rationale: Sulfonylureas increase insulin secretion regardless of glucose levels, promoting
fat storage and hypoglycemia risk, both contributing to weight gain.
Which diabetes medication class causes glucosuria?
A. Sulfonylureas
B. SGLT2 inhibitors
,C. Biguanides
D. TZDs
Correct Answer: B
Rationale: SGLT2 inhibitors block glucose reabsorption in renal proximal tubules, causing
glucose excretion in urine.
Which thyroid condition is most commonly autoimmune?
A. Goiter
B. Graves disease
C. Thyroid cancer
D. Subacute thyroiditis
Correct Answer: B
Rationale: Graves disease is an autoimmune disorder where TSH receptor antibodies
stimulate excess thyroid hormone production causing hyperthyroidism.
Which symptom cluster is most consistent with hyperthyroidism?
A. Cold intolerance, bradycardia, weight gain
B. Heat intolerance, tachycardia, weight loss
C. Fatigue, constipation, dry skin
D. Hypotension, hypoglycemia, lethargy
Correct Answer: B
Rationale: Hyperthyroidism increases metabolic rate causing heat intolerance, weight loss,
and sympathetic overactivity like tachycardia.
Which medication is first-line for Graves disease?
A. Levothyroxine
B. Methimazole
C. Insulin
D. Propylthiouracil only in all cases
Correct Answer: B
Rationale: Methimazole inhibits thyroid hormone synthesis and is first-line except in early
pregnancy where PTU may be preferred.
, Which drug blocks beta receptors in hyperthyroidism symptom management?
A. Atenolol
B. Methimazole
C. Levothyroxine
D. Metformin
Correct Answer: A
Rationale: Beta blockers reduce symptoms like tachycardia, tremors, and anxiety but do not
affect hormone levels.
Which lab is most important for monitoring thyroid function?
A. Troponin
B. TSH
C. Calcium
D. Cortisol
Correct Answer: B
Rationale: TSH is the most sensitive marker of thyroid function due to pituitary feedback
regulation.
What is the most common adverse effect of levothyroxine overdose?
A. Hypoglycemia
B. Hyperthyroid symptoms
C. Bradycardia
D. Kidney failure
Correct Answer: B
Rationale: Excess levothyroxine mimics hyperthyroidism causing tachycardia, weight loss,
and anxiety.
Which drug reduces absorption of levothyroxine?
A. Calcium supplements
B. Insulin
C. Metformin
D. Albuterol
Questions & Answers With Revised Rationales (Chamberlain) 100%
Guarantee Pass || Brandnew!!!!!!!!!!!
Which medication class is contraindicated in patients with heart failure due to fluid retention
risk?
A. Biguanides
B. Thiazolidinediones
C. GLP-1 receptor agonists
D. DPP-4 inhibitors
Correct Answer: B
Rationale: Thiazolidinediones (e.g., pioglitazone) cause sodium and water retention by
increasing insulin sensitivity in adipose and muscle tissue. This can worsen heart failure by
increasing preload and edema. Patients with reduced ejection fraction are especially at risk.
Which diabetes medication most directly decreases hepatic glucose production?
A. Insulin
B. Metformin
C. Sulfonylureas
D. SGLT2 inhibitors
Correct Answer: B
Rationale: Metformin primarily reduces hepatic gluconeogenesis, lowering fasting blood
glucose levels. It does not increase insulin secretion, which is why it has a low risk of
hypoglycemia compared to other agents.
What is the most serious adverse effect associated with metformin use?
A. Hypoglycemia
B. Lactic acidosis
C. Ketoacidosis
D. Pancreatitis
Correct Answer: B
Rationale: Metformin can rarely cause lactic acidosis, especially in patients with renal
impairment, hypoxia, or alcoholism. This occurs because impaired clearance leads to
accumulation and increased anaerobic metabolism.
,Which condition increases risk for metformin-associated lactic acidosis?
A. Hypertension
B. Renal impairment
C. Hyperthyroidism
D. Asthma
Correct Answer: B
Rationale: Metformin is excreted by the kidneys. Reduced eGFR leads to drug accumulation
and increases risk of lactic acidosis.
Which insulin characteristic is most accurate?
A. Oral administration
B. Delayed onset of action of days
C. Promotes glucose uptake into cells
D. Blocks hepatic glucose production only
Correct Answer: C
Rationale: Insulin facilitates glucose uptake into muscle and adipose tissue while also
inhibiting hepatic glucose production. It is the only hormone that lowers blood glucose
directly.
Which medication is most likely to cause weight gain in diabetic patients?
A. Metformin
B. GLP-1 agonists
C. Sulfonylureas
D. SGLT2 inhibitors
Correct Answer: C
Rationale: Sulfonylureas increase insulin secretion regardless of glucose levels, promoting
fat storage and hypoglycemia risk, both contributing to weight gain.
Which diabetes medication class causes glucosuria?
A. Sulfonylureas
B. SGLT2 inhibitors
,C. Biguanides
D. TZDs
Correct Answer: B
Rationale: SGLT2 inhibitors block glucose reabsorption in renal proximal tubules, causing
glucose excretion in urine.
Which thyroid condition is most commonly autoimmune?
A. Goiter
B. Graves disease
C. Thyroid cancer
D. Subacute thyroiditis
Correct Answer: B
Rationale: Graves disease is an autoimmune disorder where TSH receptor antibodies
stimulate excess thyroid hormone production causing hyperthyroidism.
Which symptom cluster is most consistent with hyperthyroidism?
A. Cold intolerance, bradycardia, weight gain
B. Heat intolerance, tachycardia, weight loss
C. Fatigue, constipation, dry skin
D. Hypotension, hypoglycemia, lethargy
Correct Answer: B
Rationale: Hyperthyroidism increases metabolic rate causing heat intolerance, weight loss,
and sympathetic overactivity like tachycardia.
Which medication is first-line for Graves disease?
A. Levothyroxine
B. Methimazole
C. Insulin
D. Propylthiouracil only in all cases
Correct Answer: B
Rationale: Methimazole inhibits thyroid hormone synthesis and is first-line except in early
pregnancy where PTU may be preferred.
, Which drug blocks beta receptors in hyperthyroidism symptom management?
A. Atenolol
B. Methimazole
C. Levothyroxine
D. Metformin
Correct Answer: A
Rationale: Beta blockers reduce symptoms like tachycardia, tremors, and anxiety but do not
affect hormone levels.
Which lab is most important for monitoring thyroid function?
A. Troponin
B. TSH
C. Calcium
D. Cortisol
Correct Answer: B
Rationale: TSH is the most sensitive marker of thyroid function due to pituitary feedback
regulation.
What is the most common adverse effect of levothyroxine overdose?
A. Hypoglycemia
B. Hyperthyroid symptoms
C. Bradycardia
D. Kidney failure
Correct Answer: B
Rationale: Excess levothyroxine mimics hyperthyroidism causing tachycardia, weight loss,
and anxiety.
Which drug reduces absorption of levothyroxine?
A. Calcium supplements
B. Insulin
C. Metformin
D. Albuterol
