Vitamin Deficiency and Toxicity

Question 1

Vit A Deficiency?

Answer 1

Poor night vision
Hypoparathyroidism

Question 2

Vit A toxicity

Answer 2

Pseudotumor Cerebri
Hyperparathyroidism

Question 3

Vit B1 (thiamine) Deficiency

Answer 3

Beriberi
Wernicke Encephalopathy

Question 4

Vit B1 (thiamine) toxicity?

Answer 4

Waters soluble: no toxicity

Question 5

Vit B2 Riboflavin Deficiency?

Answer 5

Angular Cheilosis
Stomatitis
Glossitis

Question 6

Vit B2 Riboflavin Toxicity?

Answer 6

Waters soluble: no toxicity

Question 7

Vit B3 Niacin Deficiency?

Answer 7

Pellagrea: 4D’s: diarrhea, dermatitis, dementia, death

Question 8

VIt B3 Niacin Toxicity?

Answer 8

Waters soluble: no toxicity

Question 9

Vit B5 Pantothenic Acid deficiency?

Answer 9

Burning feet syndrome

Question 10

Vit B5 Pantothenic acid toxicity

Answer 10

Waters soluble: no toxicity

Question 11

Vit B6 Pyridoxine deficiency?

Answer 11

Peripheral neuropathy: must give with INH

Question 12

VIT B6 Pyridoxine Toxicity?

Answer 12

Waters soluble: no toxicity

Question 13

Vit B9 Folate deficiency ?

Answer 13

Megaloblastic anemia
hypersegmented neutrophils

Question 14

Vit B9 Folate Toxicity?

Answer 14

Waters soluble: no toxicity

Question 15

Vit B12 Cyanocobalamin Deficiency?

Answer 15

Megaloblastic anemia
Hypersegmented neutrophils
Peripheral neuropathy of dorsal column tracts

Question 16

Vit B19 Cyanocobalamin toxicity ?

Answer 16

Waters soluble: no toxicity

Question 17

Vit C Deficiency?

Answer 17

Scurvy: ecchymosis, bleeding gums and petechiae

Question 18

Vit C Toxicity?

Answer 18

Waters soluble: no toxicity

Question 19

Vit D Deficiency?

Answer 19

Rickets in children

Question 20

Vit D toxicity?

Answer 20

Hypercalcemia
Polyuria
Polydipsia

Question 21

Vit K deficiency?

Answer 21

Increased PT and INR
S/S of mild to severe bleeding
Analogous to warfarin therapy

Question 22

Vit K toxicity?

Answer 22

Rare; upper limit has not been established