18 results
Causes of Vitamin B12 Deficiency - Cobalamin
Decreased Intake
Pancreas: Insufficiency
Intestine: SIBO, Celiac disease, IBD, Lymphoma, Amyloidosis, Resection,
Causes of Vitamin ... Stomach: Pernicious anemia ... Gastritis Other: Medications ... Deficiency #Cobalamin #differential ... #diagnosis #causes
Aplastic Anemia - Overview

Who?
• M = F
• 3 peaks:	1) Childhood	2) 15-25 years	3) >60 years

What?
• Aplastic anemia
and petechiae Causes ... - Antithyroid medications ... - Parvovirus B19 ... • Parvovirus B19 ... hematology #diagnosis #management
Suspected Celiac Disease - Diagnosis Algorithm

Celiac disease suspected:
 • Signs and symptoms of celiac disease
 •
Iron-deficiency anemia ... without discernable cause ... microscopic colitis Differential ... Autoimmune • CVID • Medications ... Diagnosis #Algorithm #gastroenterology
Causes of Thrombocytopenia and Platelet Disorders - Differential Diagnosis and Workup
History:
 - Prior platelet count, family
Platelet Disorders - Differential ... family history - Medications ... changes), high MCV anemia ... When do you do a BM ... Platelet #Disorders #Differential
Fatigue and IBD Algorithm
 • 40-50% patients have fatigue despite clinical remission
 • Risk factors: BMI,
, Anemia • Prevalence ... Crohn's > UC Anemia ... Receptor (sTfR) to differentiate ... /other causes • ... Algorithm #diagnosis #management
Vitamin B12 (Cobalamin) Deficiency
Etiology:
 • Vit B12 - aka cobalamin. Present in foods derived from animal
• Common Causes ... gastric acidity, medications ... Worsening macrocytic anemia ... wt loss • If anemia ... Deficiency #diagnosis #management
Creatine Kinase - Causes of Elevated CK Levels
Acute CK Elevation (Pain > Weakness):
 • RHABDOMYOLYSIS
Creatine Kinase - Causes ... alcohol - Medications ... (COVID19, CMV/EBV ... Subacute to Chronic Causes ... #Elevated #CK #differential
Hematuria in Post-Renal Transplant Patient
Prevalence up to 12% in the postrenal transplant patient
 • Bacterial: Escherichia
Prevalence up to 12% ... infections (HPV, EBV ... Prostate cancer • Medications ... Renal #Transplant #differential ... #blood #urine #management
Blurry Vision - Differential Diagnosis Framework

Anatomical Approach to Eye Disease:
1. Lids/Lashes
2. Extraocular Muscles/Motility
3. Conjunctiva/Sclera
4. Cornea
5. Anterior
Blurry Vision - Differential ... Refractive Errors 12 ... Effects of Systemic Medications ... retinopathy (sickle cell anemia ... ophthalmology #causes
Causes of Lactate Elevation, Lactic Acidosis - Differential Diagnosis

The most common causes of hyperlactatemia are usually:
Lactic Acidosis - Differential ... 30mmHg) - Severe anemia ... Alcohol • Type B2 ... - HIV/HAART medications ... Acidosis #Elevation #Differential