14 results
Causes of Iron Deficiency
 • Diet: ↓ Intake, e.g. vegan, Malnutrition, Polyphenol / tannins, ↓ Vitamin
Causes of Iron Deficiency ... Drugs, H pylori, Celiac ... : IBD, Chronic disease ... differential #diagnosis #anemia ... #nutrition
Causes of Iron Deficiency
 • Inadequate Intake: Vegetarian/vegan diet, Malnutrition
 • Increased Body Needs: Infants/preschoolers, Pregnancy,
Causes of Iron Deficiency ... Loss (without anaemia ... Bleeding, Edema, Celiac ... ) #Iron #Deficiency ... diagnosis #causes #nutrition
Causes of Anemia by Mean Corpuscular Volume (MCV) - Differential Diagnosis Algorithm
Low Mean Corpuscular Volume (<80
Volume (<80 fL) • Iron ... Deficiency • ... Normal Mean Corpuscular ... (>100 fL) • B12 ... Deficiency
Gastrointestinal Causes of Iron Deficiency Anemia
 • Mass lesions: Carcinoma, Large polyps
 • Inflammatory: Reflux esophagitis,
Gastrointestinal Causes of Iron ... Deficiency Anemia ... or colon ulcer, Celiac ... Vascular ectasia(s), Portal ... #Deficiency #Anemia
Overall Approach to Anemia - Differential Diagnosis Algorithm

Blood Loss
 • Acute Bleed - Normocytic / Normochromic
MCH, MCHC, Serum Iron ... RBC Production - Normal ... Deficiency • ... B12/Folate Deficiency ... Disease • Marrow
Diagnostic Framework for Anemia (Morphological Approach - MCV)
Low MCV - <80fL - "Microcytic"
 • Iron deficiency
Microcytic" • Iron ... some patients) Normal ... chronic kidney disease ... Megaloblastic: Vitamin B12 ... Alcohol use, Liver disease
Causes of Copper Deficiency - Differential Diagnosis
Hereditary: 
 - Menkes disease, familial hypoceruloplasminemia
Decreased / Inadequate Intake:
Causes of Copper Deficiency ... , Celiac sprue, ... , or excessive oral ... supplementation) or iron ... Parenteral or enteral nutrition
Micronutrient Deficiencies After Gastric Bypass
Fat-Soluble Vitamins:
 • Vitamin A - Night/complete blindness, xeropthalmia (pathologic dryness of
Vitamin D - Bone disease ... , apathy, normal ... • Vitamin B12 ... Trace Minerals: • Iron ... Bypass #vitamin #nutrition
Causes of Low Vitamin B12 Levels
Low vitamin B12 intake - Vegetarianism, chronic alcoholism and older people
Autoimmune
of Low Vitamin B12 ... Levels Low vitamin B12 ... Autoimmune - Pernicious anaemia ... , coeliac disease ... gynaecological - Oral
Vitamin B12 (Cobalamin) Deficiency
Etiology:
 • Vit B12 - aka cobalamin. Present in foods derived from animal
) Deficiency Etiology ... related to IBD, celiac ... disease, other ... #Cobalamin #Deficiency ... diagnosis #management #nutrition