13 results
Causes of Vitamin B12 Deficiency - Cobalamin
Decreased Intake
Pancreas: Insufficiency
Intestine: SIBO, Celiac disease, IBD, Lymphoma, Amyloidosis, Resection,
Causes of Vitamin ... B12 Deficiency ... Stomach: Pernicious anemia ... #Deficiency #Cobalamin ... #differential #
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 ... antagonists #VitaminB12 ... #cobalamin #differential
Overall Approach to Anemia - Differential Diagnosis Algorithm

Blood Loss
 • Acute Bleed - Normocytic / Normochromic
- Differential ... • B12/Folate ... Deficiency • Aplastic ... #Classification ... Diagnosis #Algorithm #Causes
Causes of Anemia by Mean Corpuscular Volume (MCV) - Differential Diagnosis Algorithm
Low Mean Corpuscular Volume (<80
Causes of Anemia ... Volume (MCV) - Differential ... (>100 fL) • B12 ... #MCV #Classification ... #Differential #
Causes of Anemia with elevated Mean Corpuscular Volume (MCV) - Differential Diagnosis Algorithm
Normal Blood Smear
 •
Causes of Anemia ... Volume (MCV) - Differential ... • Dietary Deficiency ... • Small Bowel Disorder ... and Folate Deficiency
Vitamin B12 (Cobalamin) Deficiency
Etiology:
 • Vit B12 - aka cobalamin. Present in foods derived from animal
Vitamin B12 (Cobalamin ... ) Deficiency Etiology ... • Common Causes ... dysfunction, and/or disorders ... #Cobalamin #Deficiency
Causes of Dementia / Cognitive Impairment - Differential Diagnosis Algorithm

Affecting Multiple Domains
 • Depression
 • Delirium
Decline
Subdural Hematoma • B12 ... deficiency • ... Paraneoplastic disorder ... CognitiveImpairment #Dementia #Neurology ... #Differential #
Major neurocognitive disorders (MNCD): Diagnosis and workup 

1) Clinical diagnosis Cognitive impairment + loss of autonomy
2)
neurocognitive disorders ... Whipple, vitamin deficiency ... - Progressive amnesia ... MNCD #Dementia #Differential ... #Subtypes #Classification
Acid Base Disorders - Blood Gas Interpretation

Steps for Blood Gas Interpretation: 
1. Acidemia or Alkalemia? 
2.
Acid Base Disorders ... Differentials? ... Renal failure (uremia ... #AcidBase #disorders ... Diagnosis #Summary #Nephrology
Myelodysplastic Syndromes (MDS)

What?
Myelodysplastic syndromes are a group of disorders caused by blood cells that are poorly
are a group of disorders ... Nutritional: vitamin B12 ... or folic acid deficiency ... treatments • Copper deficiency ... blood count with differential