NURS 5315 OBESITY
What is the primary mechanism of action of semaglutide?
A) Inhibiting leptin production
B) Mimicking GLP-1 to enhance satiety and insulin secretion
C) Blocking ghrelin receptors
D) Increasing gastric emptying - ANSWERS-Answer: B) Mimicking GLP-1 to
enhance satiety and insulin secretion
Rationale: Semaglutide acts as a GLP-1 receptor agonist to reduce hunger and
improve glucose control.
Which of the following is a common side effect of GLP-1 receptor agonists like
semaglutide?
A) Increased hunger
B) Nausea and delayed gastric emptying
C) Increased fat storage
D) Elevated cortisol levels - ANSWERS-Answer: B) Nausea and delayed
gastric emptying
Rationale: GLP-1 receptor agonists slow digestion, which can cause nausea and
fullness.
Which type of fat distribution is associated with higher metabolic risks?
A) Pear-shaped (peripheral obesity)
B) Apple-shaped (visceral obesity)
C) Evenly distributed body fat
,D) Subcutaneous fat accumulation - ANSWERS-Answer: B) Apple-shaped
(visceral obesity)
Rationale: Visceral obesity increases metabolic syndrome risk due to
inflammation and insulin resistance.
Why is visceral fat more dangerous than subcutaneous fat?
A) It releases more inflammatory cytokines
B) It has lower metabolic activity
C) It stores less energy
D) It does not impact insulin sensitivity - ANSWERS-Answer: A) It releases
more inflammatory cytokines
Rationale: Visceral fat contributes to chronic inflammation and metabolic
dysfunction.
A 25-year-old male presents with persistent hunger, frequent snacking, and
difficulty maintaining weight loss despite dietary changes. Blood tests show
elevated levels of ghrelin. Which of the following is the most likely reason for
his symptoms?
A) Leptin resistance
B) Increased GLP-1 secretion
C) Hyperinsulinemia
D) Overactive ghrelin signaling - ANSWERS-Answer: D) Overactive ghrelin
signaling
Rationale: Ghrelin is the "hunger hormone" and promotes food intake. Elevated
ghrelin levels can lead to increased appetite and difficulty in maintaining weight
loss.
, A 45-year-old woman with a BMI of 38 kg/m² is struggling to lose weight
despite increased exercise and calorie restriction. Laboratory findings reveal
high circulating leptin levels. What is the most likely explanation for her
continued weight gain?
A) Leptin deficiency
B) Leptin resistance
C) Ghrelin overproduction
D) Adiponectin excess - ANSWERS-Answer: B) Leptin resistance
Rationale: High leptin levels suggest that leptin signaling is impaired, leading to
continued hunger and decreased energy expenditure. This is characteristic of
leptin resistance.
A 55-year-old male with type 2 diabetes and obesity (BMI 41 kg/m²) is started
on semaglutide for weight loss. After two weeks, he reports early satiety and
nausea. What is the most likely reason for these side effects?
A) Increased ghrelin secretion
B) Decreased gastric emptying due to GLP-1 receptor activation
C) Increased cortisol production
D) Elevated insulin resistance - ANSWERS-Answer: B) Decreased gastric
emptying due to GLP-1 receptor activation
Rationale: GLP-1 receptor agonists like semaglutide delay gastric emptying,
leading to prolonged satiety and nausea as common side effects.
A 30-year-old male reports intense cravings for high-fat, high-sugar foods,
especially in the evening. He also has a history of recreational marijuana use.
Which hormonal system is most likely involved in his increased appetite?
What is the primary mechanism of action of semaglutide?
A) Inhibiting leptin production
B) Mimicking GLP-1 to enhance satiety and insulin secretion
C) Blocking ghrelin receptors
D) Increasing gastric emptying - ANSWERS-Answer: B) Mimicking GLP-1 to
enhance satiety and insulin secretion
Rationale: Semaglutide acts as a GLP-1 receptor agonist to reduce hunger and
improve glucose control.
Which of the following is a common side effect of GLP-1 receptor agonists like
semaglutide?
A) Increased hunger
B) Nausea and delayed gastric emptying
C) Increased fat storage
D) Elevated cortisol levels - ANSWERS-Answer: B) Nausea and delayed
gastric emptying
Rationale: GLP-1 receptor agonists slow digestion, which can cause nausea and
fullness.
Which type of fat distribution is associated with higher metabolic risks?
A) Pear-shaped (peripheral obesity)
B) Apple-shaped (visceral obesity)
C) Evenly distributed body fat
,D) Subcutaneous fat accumulation - ANSWERS-Answer: B) Apple-shaped
(visceral obesity)
Rationale: Visceral obesity increases metabolic syndrome risk due to
inflammation and insulin resistance.
Why is visceral fat more dangerous than subcutaneous fat?
A) It releases more inflammatory cytokines
B) It has lower metabolic activity
C) It stores less energy
D) It does not impact insulin sensitivity - ANSWERS-Answer: A) It releases
more inflammatory cytokines
Rationale: Visceral fat contributes to chronic inflammation and metabolic
dysfunction.
A 25-year-old male presents with persistent hunger, frequent snacking, and
difficulty maintaining weight loss despite dietary changes. Blood tests show
elevated levels of ghrelin. Which of the following is the most likely reason for
his symptoms?
A) Leptin resistance
B) Increased GLP-1 secretion
C) Hyperinsulinemia
D) Overactive ghrelin signaling - ANSWERS-Answer: D) Overactive ghrelin
signaling
Rationale: Ghrelin is the "hunger hormone" and promotes food intake. Elevated
ghrelin levels can lead to increased appetite and difficulty in maintaining weight
loss.
, A 45-year-old woman with a BMI of 38 kg/m² is struggling to lose weight
despite increased exercise and calorie restriction. Laboratory findings reveal
high circulating leptin levels. What is the most likely explanation for her
continued weight gain?
A) Leptin deficiency
B) Leptin resistance
C) Ghrelin overproduction
D) Adiponectin excess - ANSWERS-Answer: B) Leptin resistance
Rationale: High leptin levels suggest that leptin signaling is impaired, leading to
continued hunger and decreased energy expenditure. This is characteristic of
leptin resistance.
A 55-year-old male with type 2 diabetes and obesity (BMI 41 kg/m²) is started
on semaglutide for weight loss. After two weeks, he reports early satiety and
nausea. What is the most likely reason for these side effects?
A) Increased ghrelin secretion
B) Decreased gastric emptying due to GLP-1 receptor activation
C) Increased cortisol production
D) Elevated insulin resistance - ANSWERS-Answer: B) Decreased gastric
emptying due to GLP-1 receptor activation
Rationale: GLP-1 receptor agonists like semaglutide delay gastric emptying,
leading to prolonged satiety and nausea as common side effects.
A 30-year-old male reports intense cravings for high-fat, high-sugar foods,
especially in the evening. He also has a history of recreational marijuana use.
Which hormonal system is most likely involved in his increased appetite?
