19 results
Algorithm for the evaluation of macrocytic anemia. (RBC = red blood cell; MMA = methylmalonic acid.)
Physicians
methylmalonic acid ... the most likely cause ... recovery also causes ... of the initial work-up ... deficiency.
Causes of Neuromuscular Weakness
 • Spinal Cord: Demyelinating Disease (MS), Epidural abscess, Infarction, Syringomyelia, Tetanus, Transverse
Weakness • Spinal ... aminoglycosides) • Muscles: Acid ... maltase deficiency ... #Causes #differential ... #diagnosis #neurology
Micronutrient Deficiencies After Gastric Bypass
Fat-Soluble Vitamins:
 • Vitamin A - Night/complete blindness, xeropthalmia (pathologic dryness of
• Thiamine - Nausea ... oculomotor dysfunction, gait ... • Vitamin B12 ... Myelopathy with muscle weakness ... nutrition #table #differential
Generalized Weakness - Differential Diagnosis Framework
"l feel weak":
 • Infectious: Influenza, EBV, PNA, Bacteremia, Sepsis
 •
Generalized Weakness ... - Differential ... ILD, OSA, pHTN, Anemia ... Diagnosis #causes ... #neurology
Acute Kidney Injury - AKI Workup Algorithm and Differential Diagnosis
Baseline Investigations: full blood count with differential,
Kidney Injury - AKI Workup ... electrolytes, urea, uric acid ... osmolarity If cause ... investigations depending on clinical ... #causes
Fatigue and IBD Algorithm
 • 40-50% patients have fatigue despite clinical remission
 • Risk factors: BMI,
fatigue despite clinical ... Receptor (sTfR) to differentiate ... ACD • Monitor & ... restricted diet/deficiency ... /other causes
Vitamin B12 (Cobalamin) Deficiency
Etiology:
 • Vit B12 - aka cobalamin. Present in foods derived from animal
) Deficiency Etiology ... • Common Causes ... intrinsic factor, IF) Clinical ... parasthesias, gait ... #Cobalamin #Deficiency
Creatine Kinase - Causes of Elevated CK Levels
Acute CK Elevation (Pain > Weakness):
 • RHABDOMYOLYSIS
Creatine Kinase - Causes ... immobility • Critical ... Subacute to Chronic Causes ... - Vit D/E deficiency ... #Elevated #CK #differential
Weakness - Differential Diagnosis Framework

Approach To Weakness:
 • Non-neuromuscular disorder (Cardiac, pulmonary etc)
 • CNS ->
Weakness - Differential ... endocrine: Vitamin B12 ... deficiency • ... dystrophies Work ... #Differential #
Major neurocognitive disorders (MNCD): Diagnosis and workup 

1) Clinical diagnosis Cognitive impairment + loss of autonomy
2)
1) Clinical ... Whipple, vitamin deficiency ... Alzheimer - 1st cause ... - Progressive amnesia ... MNCD #Dementia #Differential