281 results
The differential diagnosis for an elevated MCHC (mean corpuscular hemoglobin concentration) includes:

Conditions with Abnormal RBCs:
 •
corpuscular hemoglobin concentration ... Differential #Diagnosis #Laboratory
Acute-phase Reactants Synthesized in the Liver 
Positive acute-phase reactants (concentrations increase with acute inflammation)
 - Immune-related
acute-phase reactants (concentrations ... acute-phase reactants (concentrations ... pathophysiology #Laboratory
Summary of Agents Potentially Contributing to False Positives on Urine Drug Screens (UDS)
Marijuana Metabolites
 • dronabinol,
positives; + THC concentrations ... #UDS #Testing #Laboratory
Effect of Direct Oral Anticoagulants on Hemostatic Tests
Horizontal bars correspond to the approximate range of detectability
typical on therapy concentrations ... anticoagulation #hematology #laboratory
Antibiotic Susceptibility Testing Methods
1) Kirby Bauer Disk Diffusion: disks impregnanted w/ Abx → circular gradient →
dilutions or few abx concentrations ... Susceptibility #Testing #laboratory
IgG4-Related Disease
Clinical history:  Man, 60 years, multiorgan involvement, unique or multiple inflammatory pseudotumor
4 phenotypes:
 •
high serum IgG4 concentration ... relapse No specific laboratory
Laboratory Evaluation of Patients for Thyroid Disease 
Hyperthyroidism:
 • Graves disease - TSH low; free T4
Laboratory Evaluation ... low; rT3 high; concentrations
Elevated Lactate Dehydrogenase (LDH) - Differential Diagnosis Framework

LDH is a cytoplasmic enzyme present in tissues throughout
Present in high concentrations ... differential #diagnosis #Laboratory
Antifungal Organ System Tissue Penetration

Concentrations in tissues and body fluids for each systemic antifungal agent relative
Tissue Penetration Concentrations ... relative to its concentration ... times the plasma concentration ... times the plasma concentration ... times the plasma concentration
Electrolyte Repletion

Significant electrolyte depletion can result in serious complications. These guidelines are meant to assist with
serum potassium concentration ... ionized calcium concentration ... serum magnesium concentration ... serum phosphorus concentration ... extracellular electrolyte concentrations