665 results
Etiologies of Folate Deficiency
 • Decreased dietary intake - uncommon in this era
 • Increased requirements
Etiologies of Folate Deficiency ... Decreased dietary intake ... develop folate deficiency ... if intake is not ... Alcoholics have a poor intake
Copper Deficiency - Mechanisms
There are 2 main mechanisms of copper deficiency
Decreased intake from:
 - Gastric bypass,
Copper Deficiency ... mechanisms of copper deficiency ... Decreased intake ... absorption - Reduced intake ... UTSWIMchief #Copper #Deficiency
Folate Deficiency - Causes of Decreased Folic Acid
↓ Intake: Diet, Age, Alcohol
↑ Demand: Pregnancy, Infancy, Hemolysis,
Folate Deficiency ... Decreased Folic Acid ↓ Intake ... drkeithsiau #Folate #Deficiency
Hypocalcemia - Differential Diagnosis Algorithm
 • Low Serum Mg: GI losses, Renal losses, Alcoholism, Malnutrition, Drug-Induced
Drug-Induced • Intact ... Malabsorption, Vit D deficiency ... resistance) • Intact ... losses, Low dietary intake
Hypophosphatemia - Differential Diagnosis Algorithm

Transcellular Shift
 • Recovery From DKA
 • Refeeding Syndrome
 • Acute Respiratory
• Vitamin D Deficiency ... Diuretics Decreased Intake ... - Dietary deficiency ... Alcoholism Decreased Intake
Causes of Vitamin B12 Deficiency - Cobalamin
Decreased Intake
Pancreas: Insufficiency
Intestine: SIBO, Celiac disease, IBD, Lymphoma, Amyloidosis, Resection,
of Vitamin B12 Deficiency ... Cobalamin Decreased Intake ... #Vitamin #B12 #Deficiency
Iron Deficiency Anemia - Differential Diagnosis Algorithm

Labs: Ferritin, iron, transferrin, TIBC, TSAT, sTfR

 • Blood loss:
Iron Deficiency ... Zinc excess or deficiency ... , Copper deficiency ... • Inadequate intake ... MatthewHoMD #Iron #Deficiency
Causes of Iron Deficiency
 • Inadequate Intake: Vegetarian/vegan diet, Malnutrition
 • Increased Body Needs: Infants/preschoolers, Pregnancy,
Causes of Iron Deficiency ... • Inadequate Intake ... cancer) #Iron #Deficiency
Causes of Iron Deficiency
 • Diet: ↓ Intake, e.g. vegan, Malnutrition, Polyphenol / tannins, ↓ Vitamin
Causes of Iron Deficiency ... • Diet: ↓ Intake ... drkeithsiau #Iron #Deficiency
Hyponatremia Diagnosis Algorithm
UOsm ≥ POsm - Vasopressin-Dependent
 • UNa < 20 mEq/L - Appropriate (↓ EABV)
SIADH, Cortisol deficiency ... polydipsia, Low solute intake