NR 283 Pathophysiology Final Exam: (Latest 2026/2027 Update) Endocrine,
Renal, Musculoskeletal, Neurological | Q&A | Grade A | 100% Correct
(Verified Answers)
COMPREHENSIVE REVIEW | LATEST 2026/2027
SUBJECT SOURCE FORMAT
Pathophysiology NR 283 Final Exam 2026/2027 Q&A with Clinical Rationale
1
What regulates the release of hormones?
A. Enzymes
B. Feedback systems
C. Neurotransmitters
D. Electrolytes
CORRECT ANSWER: B. Feedback systems
CLINICAL RATIONALE
1. Hormone release is primarily regulated by negative and positive feedback loops.
2
What does positive feedback tell a hormone to do?
A. Stop making
B. Ignore the signal
C. Make more
D. Destroy itself
CORRECT ANSWER: C. Make more
CLINICAL RATIONALE
1. Positive feedback amplifies hormone production (e.g., oxytocin during labor).
, 3
What does negative feedback tell a hormone to do?
A. Make more
B. Continue at same rate
C. Stop making
D. Convert to another hormone
CORRECT ANSWER: C. Stop making
CLINICAL RATIONALE
1. Negative feedback inhibits further hormone release to maintain homeostasis.
4
What is an example of a non-steroidal (water-soluble) hormone?
A. Estrogen
B. Testosterone
C. Insulin
D. Cortisol
CORRECT ANSWER: C. Insulin
CLINICAL RATIONALE
1. Water-soluble hormones (insulin) cannot cross cell membrane and require second messengers.
5
What is an example of a steroidal (lipid-soluble) hormone?
A. Insulin
B. Glucagon
C. Estrogen
D. ADH
CORRECT ANSWER: C. Estrogen
CLINICAL RATIONALE
1. Steroid hormones (estrogen, testosterone) are lipid-soluble and cross cell membrane directly.
, 6
What is downregulation in endocrinology?
A. Increased receptor sensitivity
B. Decreased receptor sensitivity
C. No change in receptors
D. Receptor destruction
CORRECT ANSWER: B. Decreased receptor sensitivity
CLINICAL RATIONALE
1. Downregulation occurs in Type 2 diabetes; cells become less responsive to insulin.
7
What is the most common cause of endocrine disorders?
A. Congenital defects
B. Autoimmune
C. Tumor on gland
D. Target cell resistance
CORRECT ANSWER: C. Tumor on gland (pituitary)
CLINICAL RATIONALE
1. Pituitary tumors are the most common cause of endocrine disorders, causing hormone excess or deficiency.
8
What are symptoms of hyperthyroidism (Graves disease)?
A. Weight gain, cold intolerance, bradycardia
B. Weight loss, heat intolerance, tachycardia
C. Constipation, fatigue, dry skin
D. Hypotension, hypoglycemia
CORRECT ANSWER: B. Weight loss, heat intolerance, tachycardia
CLINICAL RATIONALE
1. Hyperthyroidism increases metabolism, causing weight loss, heat intolerance, and tachycardia.
Renal, Musculoskeletal, Neurological | Q&A | Grade A | 100% Correct
(Verified Answers)
COMPREHENSIVE REVIEW | LATEST 2026/2027
SUBJECT SOURCE FORMAT
Pathophysiology NR 283 Final Exam 2026/2027 Q&A with Clinical Rationale
1
What regulates the release of hormones?
A. Enzymes
B. Feedback systems
C. Neurotransmitters
D. Electrolytes
CORRECT ANSWER: B. Feedback systems
CLINICAL RATIONALE
1. Hormone release is primarily regulated by negative and positive feedback loops.
2
What does positive feedback tell a hormone to do?
A. Stop making
B. Ignore the signal
C. Make more
D. Destroy itself
CORRECT ANSWER: C. Make more
CLINICAL RATIONALE
1. Positive feedback amplifies hormone production (e.g., oxytocin during labor).
, 3
What does negative feedback tell a hormone to do?
A. Make more
B. Continue at same rate
C. Stop making
D. Convert to another hormone
CORRECT ANSWER: C. Stop making
CLINICAL RATIONALE
1. Negative feedback inhibits further hormone release to maintain homeostasis.
4
What is an example of a non-steroidal (water-soluble) hormone?
A. Estrogen
B. Testosterone
C. Insulin
D. Cortisol
CORRECT ANSWER: C. Insulin
CLINICAL RATIONALE
1. Water-soluble hormones (insulin) cannot cross cell membrane and require second messengers.
5
What is an example of a steroidal (lipid-soluble) hormone?
A. Insulin
B. Glucagon
C. Estrogen
D. ADH
CORRECT ANSWER: C. Estrogen
CLINICAL RATIONALE
1. Steroid hormones (estrogen, testosterone) are lipid-soluble and cross cell membrane directly.
, 6
What is downregulation in endocrinology?
A. Increased receptor sensitivity
B. Decreased receptor sensitivity
C. No change in receptors
D. Receptor destruction
CORRECT ANSWER: B. Decreased receptor sensitivity
CLINICAL RATIONALE
1. Downregulation occurs in Type 2 diabetes; cells become less responsive to insulin.
7
What is the most common cause of endocrine disorders?
A. Congenital defects
B. Autoimmune
C. Tumor on gland
D. Target cell resistance
CORRECT ANSWER: C. Tumor on gland (pituitary)
CLINICAL RATIONALE
1. Pituitary tumors are the most common cause of endocrine disorders, causing hormone excess or deficiency.
8
What are symptoms of hyperthyroidism (Graves disease)?
A. Weight gain, cold intolerance, bradycardia
B. Weight loss, heat intolerance, tachycardia
C. Constipation, fatigue, dry skin
D. Hypotension, hypoglycemia
CORRECT ANSWER: B. Weight loss, heat intolerance, tachycardia
CLINICAL RATIONALE
1. Hyperthyroidism increases metabolism, causing weight loss, heat intolerance, and tachycardia.
