16 results
Iron Deficiency Anemia vs Anemia of Chronic Disease - Laboratory Testing

SUMMARY:
 - RDW, FEP, serum iron,
Chronic Disease - Laboratory ... Testing SUMMARY ... normal but poor sensitivity ... #Testing #Comparison ... #Table #Fe
Lab patterns seen in Inborn Errors of Metabolism

A table of lab values compiled from UpToDate and
Metabolism A table ... metabolicemergency-pathophysiology-differential-pediatrics-metabolism-algorithm-diagnosis ... Peds #Pediatrics #Table ... Genetics #IEM #Laboratory
COVID19 Testing - PCR vs CT - Sensitivity and Specificity

Original Data via https://pubs.rsna.org/doi/full/10.1148/radiol.2020200642

Admission laboratory patterns in
COVID19 Testing ... - PCR vs CT - Sensitivity ... .2020200642 Admission laboratory ... #PCR #ChestCT #Sensitivity ... #Coronavirus #VisualAbstract
Diagnostic algorithm for the workup of hypercalcemia. The diagnostic workup for patients presenting with hypercalcemia rests
Diagnostic algorithm ... value of 0.0115, sensitivity ... for correct classification ... Thus, further testing ... Hypercalcemia #Workup #Differential
Commonly Used Diagnostic Tests for Celiac Disease

Tissue transglutaminase (tTG) IgA antibodies
 - Most reliable noninvasive test
test - High sensitivity ... Widely variable sensitivity ... Celiac #Disease #Testing ... #Laboratory #Tests ... Diagnosis #Workup #Table
Hypokalemia - Differential Diagnosis
Poor Intake 
 - Starvation
 - Anorexia
GI Losses 
 - Vomiting / NG
Hypokalemia - Differential ... type 4) - Salt wasting ... #Hypokalemia #Differential ... Low #Potassium #Table ... #Classification
Hypomagnesemia - Etiologies by Mechanism

Decreased GI Uptake 
 - Poor dietary intake (particularly common in alcoholics)
Familial renal Mg wasting ... Hypomagnesemia #Differential ... Low #Magnesium #Table ... #Classification
Diagnosis Adrenal Insufficiency - Algorithm

Step 1) Screening Test: 6-8AM Cortisol Level
 - Early morning cortisol levels
Insufficiency - Algorithm ... for AI (but low sensitivity ... require Cosyntropin testing ... Step 3) Differentiate ... Insufficiency #Algorithm
1,3-Beta-D-Glucan and Galactomannan Testing Sensitivity Specificity and False Positives
1,3-Beta-D-Glucan
 • Cell wall component of many fungi
Galactomannan Testing ... Sensitivity Specificity ... in BAL does not differentiate ... Galactomannan #Fungal #Testing ... FalsePositives #Laboratory
A lazy man's classification of hyponatremia
There are two possible approaches to the diagnosis of hyponatremia: .
A lazy man's classification ... cerebral salt wasting ... #Hyponatremia #Algorithm ... #Differential #