160 results
Folate Deficiency - Causes of Decreased Folic Acid
↓ Intake: Diet, Age, Alcohol
↑ Demand: Pregnancy, Infancy, Hemolysis,
Folate Deficiency ... Sulfasalazine, Trimethoprim ... @drkeithsiau #Folate
Etiologies of Folate Deficiency
 • Decreased dietary intake - uncommon in this era
 • Increased requirements
Etiologies of Folate ... underlying mild folate ... susceptible to trimethoprim ... consumption of folate ... In addition, folate
Antibiotics - Mechanisms and Sites of Action 

Inhibit Cell Wall Synthesis or Function 
- Beta Lactams,
Quinolones Inhibits Folate ... Synthesis: Trimethoprim
Diagnosing Vitamin B12 and/or Folate Deficiency

It turns out that simply measuring serum levels of B12 or
Vitamin B12 and/or Folate ... levels of B12 or folate ... the first line tests ... Serum folate levels ... Since folate is
Focus Assessed Transthoracic Echo (FATE) - Basic FATE views

Pos 1: Subcostal 4-chamber

Pos 2: Apical 4-chamber

Pos 3:
Focus Assessed Transthoracic ... Echo (FATE) - Basic ... FATE views Pos ... Pleural scanning #FATE ... Echocardiogram #POCUS
POCUS Stewardship
Right Indication - Right Interpretation -Right Integration
Indication → Pre-test Probability → Spectrum of Disease →
POCUS Stewardship ... Indication → Pre-test ... Step 2: Pre-test ... Develop a pre-test ... assign a final post-test
Piriformis Test (FAIR Test - Flexion, Adduction, and Internal Rotation)

Flex the hip to 90 degrees, then
Piriformis Test ... (FAIR Test - Flexion ... and internally rotate ... is a positive test ... Piriformis #FAIR #Test
Freiberg's Test for Piriformis Syndrome

Flex the hip to 90 degrees, internally rotate the hip.
Pain in the
Freiberg's Test ... degrees, internally rotate ... is a positive test ... syndrome #Freibergs #Test
Crank Test for Labral Tear of the Shoulder

To perform the Crank Test, fully abduct the shoulder
Crank Test for Labral ... perform the Crank Test ... and externally rotate ... considered a positive test ... Shoulder #Crank #Test
Causes of Anemia with elevated Mean Corpuscular Volume (MCV) - Differential Diagnosis Algorithm
Normal Blood Smear
 •
Neutrophils - Low RBC Folate ... Liver Function Tests ... Rule out B12 and Folate ... Liver Function Tests