12 results
Pulmonary Function Tests (PFTs) - Interpretation Algorithm
 • Normal
 • Pulmonary Hypertension, Anemia, Carboxyhemoglobinemia
 • Chest
Normal • ... Hypertension, Anemia ... Interstitial Lung Disease ... #Pulmonary #FunctionTests ... #diagnosis
Causes of False Elevation and Reduction in HbA1c

== False Elevation ==
Decreased RBC turnover 
• Iron, B-12,
Causes of False Elevation ... Iron, B-12, or folate ... • Hemolytic anemia ... End-stage renal disease ... #Decrease #Diagnosis
Overall Approach to Anemia - Differential Diagnosis Algorithm

Blood Loss
 • Acute Bleed - Normocytic / Normochromic
- Differential Diagnosis ... Algorithm Blood ... RBC Production - Normal ... Deficiency • B12/Folate ... Disease • Marrow
Causes of Anemia with elevated Mean Corpuscular Volume (MCV) - Differential Diagnosis Algorithm
Normal Blood Smear
 •
- Differential Diagnosis ... Algorithm Normal ... Rule out B12 and Folate ... • Liver Disease ... #Algorithm #Causes
Causes of Anemia by Mean Corpuscular Volume (MCV) - Differential Diagnosis Algorithm
Low Mean Corpuscular Volume (<80
- Differential Diagnosis ... Algorithm Low ... Normal Mean Corpuscular ... Deficiency • Folate ... #Algorithm #Causes
Micronutrient Deficiencies After Gastric Bypass
Fat-Soluble Vitamins:
 • Vitamin A - Night/complete blindness, xeropthalmia (pathologic dryness of
Vitamin D - Bone disease ... , apathy, normal ... cardiomyopathy) • Folate ... blindness, dermatitis, decreased ... #differential #diagnosis
TTP - Laboratory Evaluation for Thrombotic Thrombocytopenic Purpura

Activity of von Willebrand factor-cleaving protease activity - A
activity is the diagnostic ... hallmark for the disease ... result in severe anemia ... immune hemolytic anemia ... Mild-to-moderate elevation
Metabolic and Respiratory Acidosis and Alkalosis - Diagnostic Algorithm

Anion gap - MUDPILES: 
 - Methanol (formic
Algorithm Anion ... formic acid) - Uremia ... - Salicylates (late ... ) Normal anion ... Hyperalimentation - Addison disease
Commonly Observed Laboratory Findings in Hepatic / Liver Failure
 - Elevated conjugated and unconjugated bilirubin -
ALT and AST - Elevations ... chronic liver disease ... deficiency - Anemia ... leads to chronic anemia ... Hepatology #Laboratory #Diagnosis
Elevated Lactate Dehydrogenase (LDH) - Differential Diagnosis Framework

LDH is a cytoplasmic enzyme present in tissues throughout
- Differential Diagnosis ... upon damage • Normal ... Pneumocystis pneumonia (late ... Idiosyncratic LDH Elevation ... #differential #diagnosis