12 results
Micronutrient Deficiencies After Gastric Bypass
Fat-Soluble Vitamins:
 • Vitamin A - Night/complete blindness, xeropthalmia (pathologic dryness of
Bypass Fat-Soluble Vitamins ... : • Vitamin A - ... • Vitamin B12 ... Trace Minerals: • Iron ... #differential #diagnosis
Causes of Vitamin B12 Deficiency - Cobalamin
Decreased Intake
Pancreas: Insufficiency
Intestine: SIBO, Celiac disease, IBD, Lymphoma, Amyloidosis, Resection,
Causes of Vitamin ... Intestine: SIBO, Celiac ... Stomach: Pernicious anemia ... BrighamChiefs #Vitamin ... #differential #diagnosis
Causes of Iron Deficiency
 • Diet: ↓ Intake, e.g. vegan, Malnutrition, Polyphenol / tannins, ↓ Vitamin
Causes of Iron Deficiency ... Polyphenol / tannins, ↓ Vitamin ... Drugs, H pylori, Celiac ... #differential #diagnosis ... #anemia #nutrition
Algorithm for the evaluation of macrocytic anemia. (RBC = red blood cell; MMA = methylmalonic acid.)
Physicians
Algorithm for the evaluation ... reticulocyte count, and a vitamin ... Measures of vitamin ... work-up, because if vitamin ... #Diagnosis #Macrocytosis
Causes of Low Vitamin B12 Levels
Low vitamin B12 intake - Vegetarianism, chronic alcoholism and older people
Autoimmune
Causes of Low Vitamin ... B12 Levels Low ... vitamin B12 intake ... Crohn 's disease, coeliac ... #differential #diagnosis
Diagnostic Framework for Anemia (Morphological Approach - MCV)
Low MCV - <80fL - "Microcytic"
 • Iron deficiency
Diagnostic Framework ... Microcytic" • Iron ... Megaloblastic: Vitamin ... B12 deficiency, ... #causes #hematology
Causes of False Elevation and Reduction in HbA1c

== False Elevation ==
Decreased RBC turnover 
• Iron, B-12,
Causes of False ... RBC turnover • Iron ... • Hemolytic anemia ... glycosylation • Vitamin ... Increase #Decrease #Diagnosis
Scurvy (Vitamin C Deficiency) - Diagnosis and Management

Vitamin C is required for hydroxylation of proline residues
Scurvy (Vitamin ... Vitamin C is required ... : • Vitamin C deficiency ... g/day of oral vitamin ... Pathophysiology #VitaminC
Vitamin B12 (Cobalamin) Deficiency
Etiology:
 • Vit B12 - aka cobalamin. Present in foods derived from animal
Vitamin B12 (Cobalamin ... • Common Causes ... related to IBD, celiac ... @taleanski #Vitamin ... #management #nutrition
Allopecia - Differential Diagnosis Framework for Hair Loss

Localized / Focal Hair Loss Pattern:
 • Scarring Alopecia:
- Differential Diagnosis ... Copper deficiency, Vitamin ... A excess, Vitamin ... • Laboratory evaluation ... • ANA • Vitamin