CSOWM COMPREHENSIVE CERTIFICATION
TEST 2026 COMPLETE QUESTIONS AND
ANSWERS
◉ Which bariatric procedure is both restrictive and malabsorptive?
A. Gastric band
B. Sleeve gastrectomy
C. Roux-en-Y gastric bypass
D. Intragastric balloon
Answer: C. Roux-en-Y gastric bypass
Why:
Restrictive → small pouch
Malabsorptive → bypasses duodenum Other options are restrictive
only
◉ What is the earliest clinical sign of thiamin deficiency?
A. Hair loss
B. Peripheral neuropathy
C. Night blindness
D. Edema
Answer: B. Peripheral neuropathy
,Why: Early thiamin deficiency presents as:
Neuropathy
Weakness Can rapidly progress to Wernicke's → medical emergency
◉ Which complication is most associated with excessive restriction
after bariatric surgery?
A. Hypoglycemia
B. Vitamin D toxicity
C. Hyperkalemia
D. Hypertension
Answer: A. Hypoglycemia
Why: Excessive restriction + rapid absorption →exaggerated insulin
response → hypoglycemia
Especially post-bariatric
◉ What is the primary cause of iron deficiency after Roux-en-Y
gastric bypass?
A. Increased urinary loss
B. Reduced gastric acid and bypass of duodenum
C. Excess dietary calcium
D. Increased absorption
Answer: B. Reduced gastric acid and bypass of duodenum
, Why: Iron absorption requires:
Acid (to activate iron)
Duodenum (primary absorption site) Both are impaired in RYGB
◉ Which lab is most sensitive for early iron deficiency?
A. Hemoglobin
B. Serum iron
C. Ferritin
D. MCV
Answer: C. Ferritin
Why: Ferritin = iron storage marker
Drops before hemoglobin or MCV
Most sensitive early indicator
◉ Which lab abnormality is most consistent with copper deficiency?
A. Leukocytosis
B. Microcytic anemia with neutropenia
C. Hypercalcemia
D. Elevated hemoglobin
Answer: B. Microcytic anemia with neutropenia
Why: Copper deficiency causes:
Anemia (often microcytic)
TEST 2026 COMPLETE QUESTIONS AND
ANSWERS
◉ Which bariatric procedure is both restrictive and malabsorptive?
A. Gastric band
B. Sleeve gastrectomy
C. Roux-en-Y gastric bypass
D. Intragastric balloon
Answer: C. Roux-en-Y gastric bypass
Why:
Restrictive → small pouch
Malabsorptive → bypasses duodenum Other options are restrictive
only
◉ What is the earliest clinical sign of thiamin deficiency?
A. Hair loss
B. Peripheral neuropathy
C. Night blindness
D. Edema
Answer: B. Peripheral neuropathy
,Why: Early thiamin deficiency presents as:
Neuropathy
Weakness Can rapidly progress to Wernicke's → medical emergency
◉ Which complication is most associated with excessive restriction
after bariatric surgery?
A. Hypoglycemia
B. Vitamin D toxicity
C. Hyperkalemia
D. Hypertension
Answer: A. Hypoglycemia
Why: Excessive restriction + rapid absorption →exaggerated insulin
response → hypoglycemia
Especially post-bariatric
◉ What is the primary cause of iron deficiency after Roux-en-Y
gastric bypass?
A. Increased urinary loss
B. Reduced gastric acid and bypass of duodenum
C. Excess dietary calcium
D. Increased absorption
Answer: B. Reduced gastric acid and bypass of duodenum
, Why: Iron absorption requires:
Acid (to activate iron)
Duodenum (primary absorption site) Both are impaired in RYGB
◉ Which lab is most sensitive for early iron deficiency?
A. Hemoglobin
B. Serum iron
C. Ferritin
D. MCV
Answer: C. Ferritin
Why: Ferritin = iron storage marker
Drops before hemoglobin or MCV
Most sensitive early indicator
◉ Which lab abnormality is most consistent with copper deficiency?
A. Leukocytosis
B. Microcytic anemia with neutropenia
C. Hypercalcemia
D. Elevated hemoglobin
Answer: B. Microcytic anemia with neutropenia
Why: Copper deficiency causes:
Anemia (often microcytic)
