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 ... #low #cobalamin ... #differential #
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 #
Vitamin B12 (Cobalamin) Deficiency
Etiology:
 • Vit B12 - aka cobalamin. Present in foods derived from animal
Vitamin B12 (Cobalamin ... • Common Causes ... intrinsic factor, IF) Clinical ... parasthesias, gait ... #Cobalamin #Deficiency
Overall Approach to Anemia - Differential Diagnosis Algorithm

Blood Loss
 • Acute Bleed - Normocytic / Normochromic
- Differential ... • B12/Folate ... Deficiency • Aplastic ... #Classification ... Diagnosis #Algorithm #Causes
Fatigue and IBD Algorithm
 • 40-50% patients have fatigue despite clinical remission
 • Risk factors: BMI,
fatigue despite clinical ... Crohn's > UC Anemia ... Receptor (sTfR) to differentiate ... restricted diet/deficiency ... /other causes •
Low Alkaline Phosphatase - Hypophosphatasia 

Is Low Alkaline Phosphatase Of Clinical Importance?

ALP enzyme- Discovered in 1923
Low
• Pernicious anemia ... /B12 deficiency ... respiratory failure • Neurologic ... ) - Waddling gait ... Phosphatase: • Other causes
Major neurocognitive disorders (MNCD): Diagnosis and workup 

1) Clinical diagnosis Cognitive impairment + loss of autonomy
2)
workup 1) Clinical ... Whipple, vitamin deficiency ... - Progressive amnesia ... MNCD #Dementia #Differential ... #Subtypes #Classification
Causes of Lactate Elevation, Lactic Acidosis - Differential Diagnosis

The most common causes of hyperlactatemia are usually:
Lactic Acidosis - Differential ... malignancy, or thiamine deficiency ... 30mmHg) - Severe anemia ... effect - Thiamine deficiency ... #typea #typeb #classification
Lesions of the Spinal cord - Spinal Cord Syndromes

Spinal cord lesions can result in permanent neurologic
result in permanent neurologic ... HIV) - Vitamin B12 ... , Copper deficiency ... syndromes #lesions #differential ... #diagnosis #neurology