12 results
Causes of Vitamin B12 Deficiency - Cobalamin
Decreased Intake
Pancreas: Insufficiency
Intestine: SIBO, Celiac disease, IBD, Lymphoma, Amyloidosis, Resection,
Causes of Vitamin ... B12 Deficiency ... Celiac disease, IBD ... Pernicious anemia, Bypass ... #Cobalamin #differential
Causes of Thrombocytosis - Differential Diagnosis Algorithm
Spurious:
 • Artifact (redo CBC)
Autonomous:
 • Essential thrombocytosis
 • Polycythemia
Causes of Thrombocytosis ... - Differential ... Diagnosis Algorithm ... Inflammatory: • IBD ... malignancy • Iron deficiency
Iron Deficiency Anemia - Differential Diagnosis Algorithm

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

 • Blood loss:
Anemia - Differential ... Diagnosis Algorithm ... Tropical sprue, IBD ... , Bypass surgery ... #Anemia #Differential
Causes of Iron Deficiency - Differential Diagnosis Algorithm
 • Blood loss: GI (cancer, ulcer, IBD), GU
Causes of Iron Deficiency ... - Differential ... Diagnosis Algorithm ... cancer, ulcer, IBD ... Celiac disease, Bypass
Elevated Amylase (Hyperamylasemia)- Differential Diagnosis Algorithm
Pancreatic causes:
 - Pancreatic cancer
 - Complications pancreatitis: eg pseudocyst
 -
Elevated Amylase ... Diagnosis Algorithm ... Pancreatic causes ... fibrosis - Post ERCP ... sulindac - Active IBID
Suspected Celiac Disease - Diagnosis Algorithm

Celiac disease suspected:
 • Signs and symptoms of celiac disease
 •
disease • Iron-deficiency ... treatment • Elevated ... without discernable cause ... microscopic colitis Differential ... Inflammatory (IBD
Fatigue and IBD Algorithm
 • 40-50% patients have fatigue despite clinical remission
 • Risk factors: BMI,
Fatigue and IBD ... UC Anemia and IBD ... IDA and active IBD ... fatigue w/ active IBD ... /other causes
Hypocalcemia - Differential Diagnosis Algorithm
 • Low Serum Mg: GI losses, Renal losses, Alcoholism, Malnutrition, Drug-Induced
Diagnosis Algorithm ... Intact PTH Level Elevated ... Hyperparathyroidism: CKD ... Malabsorption, Vit D deficiency ... #causes
Short Stature - Differential Diagnosis Algorithm
Normal Variant, Normal Puberty Onset (BA = CA)
 • Familial Short
Short Stature - Differential ... Diagnosis Algorithm ... • IGF-I Deficiency ... Celiac, IBD) • ... endocrinology #causes
Approach to Thrombocytosis - Elevated Platelet Count - Differential Diagnosis Algorithm

Peripheral Smear concerning for malignancy?
Thrombocytosis - Elevated ... Platelet Count - Differential ... Diagnosis Algorithm ... Acute hemolysis, deficiency ... Vasculitides, IBD