NDEE Exam 6 | Complete Questions with
Correct Answers and Detailed Rationales
- Latest Update 2026
SECTION 1: ENDOCRINE SYSTEM DISORDERS
1. What is the primary function of the hypothalamic-
pituitary-adrenal (HPA) axis in endocrine regulation?
A) Regulating blood calcium levels
B) Controlling metabolic rate
C) Managing stress response and cortisol secretion
D) Stimulating thyroid hormone production
Answer: C) Managing stress response and cortisol
secretion
Rationale: The HPA axis plays a central role in the body's
response to stress by regulating cortisol secretion from
the adrenal cortex .
2. Which statement best differentiates endocrine from
exocrine glands?
A) Endocrine glands have ducts; exocrine glands are
ductless
B) Endocrine glands secrete hormones into the
bloodstream; exocrine glands secrete substances
,through ducts onto surfaces
C) Endocrine glands produce enzymes; exocrine glands
produce hormones
D) Endocrine glands are localized; exocrine glands are
systemic
Answer: B) Endocrine glands secrete hormones into the
bloodstream; exocrine glands secrete substances
through ducts onto surfaces
Rationale: Endocrine glands release hormones directly
into the bloodstream for systemic effects, whereas
exocrine glands secrete substances via ducts to specific
surfaces or body cavities .
3. During a physical exam, which finding is most
indicative of hypothyroidism?
A) Warm, moist skin
B) Bradycardia and dry skin
C) Restlessness and tachycardia
D) Weight loss and increased energy
Answer: B) Bradycardia and dry skin
Rationale: Hypothyroidism commonly presents with dry
skin, bradycardia, and overall slowed metabolic
processes, whereas hyperthyroidism presents with warm
skin, tachycardia, and weight loss .
,4. Which diagnostic test is most useful for assessing
thyroid hormone production?
A) Serum calcium levels
B) Serum TSH and free T4 levels
C) Serum amylase and lipase
D) Fecal fat analysis
Answer: B) Serum TSH and free T4 levels
Rationale: Serum TSH and free T4 levels are primary tests
for evaluating thyroid function, indicating
hypothyroidism or hyperthyroidism .
5. A patient with suspected acromegaly is scheduled for
imaging. Which imaging modality is most appropriate?
A) Ultrasound of the thyroid
B) Brain MRI focusing on the pituitary gland
C) Abdominal CT scan
D) Chest X-ray
Answer: B) Brain MRI focusing on the pituitary gland
Rationale: MRI of the pituitary gland is the preferred
imaging method for detecting pituitary adenomas
causing acromegaly .
6. Post-transsphenoidal hypophysectomy, what is a
critical nursing intervention?
A) Monitor for CSF leak with clear nasal drainage
B) Administer high-dose steroids immediately
, C) Keep the patient NPO for 7 days
D) Encourage vigorous coughing to clear nasal passages
Answer: A) Monitor for CSF leak with clear nasal
drainage
Rationale: Post-transsphenoidal hypophysectomy
requires monitoring for cerebrospinal fluid (CSF) leak,
which may present as clear nasal drainage .
7. Which medication is used pre-operatively for
pheochromocytoma to control hypertension?
A) Alpha-adrenergic blockers like phenoxybenzamine
B) Beta-blockers only
C) Insulin
D) Corticosteroids
Answer: A) Alpha-adrenergic blockers like
phenoxybenzamine
Rationale: Alpha-blockers are used to control
hypertensive crises caused by catecholamine release
from pheochromocytoma .
8. In diabetes mellitus, what distinguishes Type 1 from
Type 2?
A) Autoimmune destruction of pancreatic beta cells in
Type 1
B) Insulin resistance with normal beta cell function in
Type 1
Correct Answers and Detailed Rationales
- Latest Update 2026
SECTION 1: ENDOCRINE SYSTEM DISORDERS
1. What is the primary function of the hypothalamic-
pituitary-adrenal (HPA) axis in endocrine regulation?
A) Regulating blood calcium levels
B) Controlling metabolic rate
C) Managing stress response and cortisol secretion
D) Stimulating thyroid hormone production
Answer: C) Managing stress response and cortisol
secretion
Rationale: The HPA axis plays a central role in the body's
response to stress by regulating cortisol secretion from
the adrenal cortex .
2. Which statement best differentiates endocrine from
exocrine glands?
A) Endocrine glands have ducts; exocrine glands are
ductless
B) Endocrine glands secrete hormones into the
bloodstream; exocrine glands secrete substances
,through ducts onto surfaces
C) Endocrine glands produce enzymes; exocrine glands
produce hormones
D) Endocrine glands are localized; exocrine glands are
systemic
Answer: B) Endocrine glands secrete hormones into the
bloodstream; exocrine glands secrete substances
through ducts onto surfaces
Rationale: Endocrine glands release hormones directly
into the bloodstream for systemic effects, whereas
exocrine glands secrete substances via ducts to specific
surfaces or body cavities .
3. During a physical exam, which finding is most
indicative of hypothyroidism?
A) Warm, moist skin
B) Bradycardia and dry skin
C) Restlessness and tachycardia
D) Weight loss and increased energy
Answer: B) Bradycardia and dry skin
Rationale: Hypothyroidism commonly presents with dry
skin, bradycardia, and overall slowed metabolic
processes, whereas hyperthyroidism presents with warm
skin, tachycardia, and weight loss .
,4. Which diagnostic test is most useful for assessing
thyroid hormone production?
A) Serum calcium levels
B) Serum TSH and free T4 levels
C) Serum amylase and lipase
D) Fecal fat analysis
Answer: B) Serum TSH and free T4 levels
Rationale: Serum TSH and free T4 levels are primary tests
for evaluating thyroid function, indicating
hypothyroidism or hyperthyroidism .
5. A patient with suspected acromegaly is scheduled for
imaging. Which imaging modality is most appropriate?
A) Ultrasound of the thyroid
B) Brain MRI focusing on the pituitary gland
C) Abdominal CT scan
D) Chest X-ray
Answer: B) Brain MRI focusing on the pituitary gland
Rationale: MRI of the pituitary gland is the preferred
imaging method for detecting pituitary adenomas
causing acromegaly .
6. Post-transsphenoidal hypophysectomy, what is a
critical nursing intervention?
A) Monitor for CSF leak with clear nasal drainage
B) Administer high-dose steroids immediately
, C) Keep the patient NPO for 7 days
D) Encourage vigorous coughing to clear nasal passages
Answer: A) Monitor for CSF leak with clear nasal
drainage
Rationale: Post-transsphenoidal hypophysectomy
requires monitoring for cerebrospinal fluid (CSF) leak,
which may present as clear nasal drainage .
7. Which medication is used pre-operatively for
pheochromocytoma to control hypertension?
A) Alpha-adrenergic blockers like phenoxybenzamine
B) Beta-blockers only
C) Insulin
D) Corticosteroids
Answer: A) Alpha-adrenergic blockers like
phenoxybenzamine
Rationale: Alpha-blockers are used to control
hypertensive crises caused by catecholamine release
from pheochromocytoma .
8. In diabetes mellitus, what distinguishes Type 1 from
Type 2?
A) Autoimmune destruction of pancreatic beta cells in
Type 1
B) Insulin resistance with normal beta cell function in
Type 1
