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Zinc Deficiency
DR NARENDRA KUMAR YADAV
MD Community Medicine & Tropical Diseases, BPKIHS
Classification of food on the basis of chemical composition:
Zinc:
Micronutrients
Minerals(Trace element)
Antioxidant
Sources of Zinc:
1. Animal Food: Fish, Meat, Milk
2. Vegetable: Low Bioavailability
The average adult body contains 1.4 to 2.3 g of zinc.
RDA: Adult (10mg/day)
Pregnancy & lactation (15-20mg/day)
Functions of Zinc:
Required for: Synthesis of Insulin by Pancreas
Normal growth & Wound Healing
Important for the immune system
Sexual development
Antioxidant
Clinical manifestations of Zn deficiency:
Loss of Taste ( Ageusia)
Loss of Appetite
Skin: Acrodermatitis Enteropathica, Acne, Eczema, Xerosis
Decreased Insulin Synthesis by Pancreas
Growth Failure
Delayed Wound Healing
Dwarfism & Hypogonadism
Sexual Infantilism in adolescent
Clinical manifestations of Zn deficiency: Cont.…
Impaired cell-mediated immunity: RTI (Pneumonia), gastrointestinal
infection(diarrhoea)
Pernicious Anemia/ Megaloblastic Anemia
Thalassemia
Myocardial Infraction
Hepatosplenomegaly
Maternal Zinc deficiency: Spontaneous abortion, LBW, IUGR, Preterm
delivery, Anencephaly
Diarrhoea in children:
Zinc supplementation in combination with ORS reduces the
Duration and severity of Diarrhoea:
Dose:
< 6 Months 10 mg/day
> 6 Months 20mg/day
Zinc Toxicity: Pulmonary Fibrosis
MCQ
Q. Zinc deficiency leads to all except:
A. Delayed Sexual Maturation
B. Impaired Immune function
C. Skeletal Abnormalities
D. Excessive Appetite
Ans: D (Excessive Appetite)
Zn Deficiency Causes: Loss of Appetite
MCQ
Q. Zinc deficiency is characterized by:
A. Sexual infantilism
B. Poor growth
C. Poor wound healing
D. All of the above
Ans: D (All of the above)
MCQ
Q. One of the following is not reported to be a clinical manifestation
of Zinc deficiency in children:
A. Increased insulin synthesis
B. Liver and spleen enlargement
C. Impaired cell-mediated immunity
D. Macrocytic anemia
Ans: A (Increased insulin synthesis)
 Zn Deficiency Causes: Decreased Insulin
Synthesis by Pancreas
MCQ
Q. Zinc supplement given in 12 month baby:
A. 20mg/day
B. 10 mg/day
C. 5 mg/day
D.15 mg/day
Ans: A (20mg/day)
< 6 Months 10 mg/day
> 6 Months 20mg/day
The End

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Zinc,PSM,Community Medicine,DR NARENDRA KUMAR YADAV

  • 1. Zinc Deficiency DR NARENDRA KUMAR YADAV MD Community Medicine & Tropical Diseases, BPKIHS
  • 2. Classification of food on the basis of chemical composition:
  • 4. Sources of Zinc: 1. Animal Food: Fish, Meat, Milk 2. Vegetable: Low Bioavailability The average adult body contains 1.4 to 2.3 g of zinc. RDA: Adult (10mg/day) Pregnancy & lactation (15-20mg/day)
  • 5. Functions of Zinc: Required for: Synthesis of Insulin by Pancreas Normal growth & Wound Healing Important for the immune system Sexual development Antioxidant
  • 6. Clinical manifestations of Zn deficiency: Loss of Taste ( Ageusia) Loss of Appetite Skin: Acrodermatitis Enteropathica, Acne, Eczema, Xerosis Decreased Insulin Synthesis by Pancreas Growth Failure Delayed Wound Healing Dwarfism & Hypogonadism Sexual Infantilism in adolescent
  • 7. Clinical manifestations of Zn deficiency: Cont.… Impaired cell-mediated immunity: RTI (Pneumonia), gastrointestinal infection(diarrhoea) Pernicious Anemia/ Megaloblastic Anemia Thalassemia Myocardial Infraction Hepatosplenomegaly Maternal Zinc deficiency: Spontaneous abortion, LBW, IUGR, Preterm delivery, Anencephaly
  • 8. Diarrhoea in children: Zinc supplementation in combination with ORS reduces the Duration and severity of Diarrhoea: Dose: < 6 Months 10 mg/day > 6 Months 20mg/day Zinc Toxicity: Pulmonary Fibrosis
  • 9. MCQ Q. Zinc deficiency leads to all except: A. Delayed Sexual Maturation B. Impaired Immune function C. Skeletal Abnormalities D. Excessive Appetite
  • 10. Ans: D (Excessive Appetite) Zn Deficiency Causes: Loss of Appetite
  • 11. MCQ Q. Zinc deficiency is characterized by: A. Sexual infantilism B. Poor growth C. Poor wound healing D. All of the above
  • 12. Ans: D (All of the above)
  • 13. MCQ Q. One of the following is not reported to be a clinical manifestation of Zinc deficiency in children: A. Increased insulin synthesis B. Liver and spleen enlargement C. Impaired cell-mediated immunity D. Macrocytic anemia
  • 14. Ans: A (Increased insulin synthesis)  Zn Deficiency Causes: Decreased Insulin Synthesis by Pancreas
  • 15. MCQ Q. Zinc supplement given in 12 month baby: A. 20mg/day B. 10 mg/day C. 5 mg/day D.15 mg/day
  • 16. Ans: A (20mg/day) < 6 Months 10 mg/day > 6 Months 20mg/day