27 results
Lab patterns seen in Inborn Errors of Metabolism

A table of lab values compiled from UpToDate and
Lab patterns seen ... A table of lab ... values compiled ... metabolicemergency-pathophysiology-differential-pediatrics-metabolism-algorithm-diagnosis ... Genetics #IEM #Laboratory
Hypokalemia Evaluation Algorithm

Before evaluating hypokalemia, life threatening complications such as arrhythmias and paralysis should be looked
Algorithm Before ... wasting from other causes ... suggests extra-renal causes ... consumption • Low/Normal ... #differential #
Hypercalcemia Evaluation
1) Clinical clues
 - Is the patient symptomatic?
 - Family history?
 - Have you done
Hypercalcemia Evaluation ... 1) Clinical clues ... FeCa <1 %) - Low normal ... • If all normal ... Hypercalcemia #workup #differential
Causes of Extravascular and Intravascular Hemolysis - Differential Diagnosis Algorithm
Extravascular - Spleen and RES-mediated hemolysis
 -
Causes of Extravascular ... Diagnosis Algorithm ... Drug-induced AIHA - Abnormal ... Prosthetic heart valves ... #Causes #Hematology
Hypocalcemia - Differential Diagnosis Algorithm
 • Low Serum Mg: GI losses, Renal losses, Alcoholism, Malnutrition, Drug-Induced
Hypocalcemia - Differential ... Diagnosis Algorithm ... Inappropriately Normal ... #Diagnosis #Algorithm ... #causes
Erythrocytosis - Polycythemia Differential Diagnosis Algorithm

Elevated Hemoglobin:
 • Males: Hb > 16.5 g/dL/HCT ≥ 49%
 •
- Polycythemia Differential ... Diagnosis Algorithm ... Hemoglobin: • Males ... Polycythemia - Acquired Causes ... ), TEMPI (VEGF normal
TTP - Laboratory Evaluation for Thrombotic Thrombocytopenic Purpura

Activity of von Willebrand factor-cleaving protease activity - A
TTP - Laboratory ... Evaluation for ... activity - A low value ... If the value is ... WBC count and differential
Algorithm for the Evaluation of Chronic Diarrhea (< 7 days)
Exclude:
1. Causes of acute diarrhea
2. Lactose intolerance
3.
Algorithm for the ... Evaluation of Chronic ... Causes of acute ... Laxative abuse Normal ... workup #diagnosis #differential
Laboratory Evaluation of Patients for Thyroid Disease 
Hyperthyroidism:
 • Graves disease - TSH low; free T4
Laboratory Evaluation ... high; in some cases ... or high; normal ... or high; normal ... #hyperthyroid #differential
Causes of Interstitial Lung Disease - Differential Diagnosis Algorithm
Idiopathic Interstitial Pneumonia
 • (UIP) Usual Interstitial Pneumonia
Causes of Interstitial ... Lung Disease - Differential ... Diagnosis Algorithm ... Amy Chung, MD, MSc ... #Differential #