ASCP MLS Calculations Latest 2023
Graded A+
Dilution Formula ✔✔Sample Volume / (Sample Volume + Diluent Volume)
Sensitivity ✔✔True Positives / (True Positives + False Negatives)
Specificity ✔✔True Negatives / (True N
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ASCP MLS Calculations Latest 2023
Graded A+
Dilution Formula ✔✔Sample Volume / (Sample Volume + Diluent Volume)
Sensitivity ✔✔True Positives / (True Positives + False Negatives)
Specificity ✔✔True Negatives / (True Negatives + False Positives)
Anion Gap ✔✔[Na+] + [K+] - [Cl-] + [HCO3-]
Beer's law ✔✔A = abc
a = absorbance
b = path length
c = concentration
LDL cholesterol ✔✔Total cholesterol - (HDL + Triglycerides/5)
Coefficient of Variation ✔✔(Standard Deviation/Mean) x 100
Concentration calculations ✔✔(C1) (V1) = (C2) (V2)
Corrected WBC Count ✔✔(Automated WBC count x 100) / (NRBC per 100 WBCs) + 100
Ka ✔✔([H+][A-])/[HA]
Efficiency ✔✔((TP + TN) / (TP + FP + FN + TN)) x 100
Positive Predictive Value ✔✔(TP / TP + FP) x 100
Negative Predictive Value ✔✔(TN / TN + FN) x 100
F test ✔✔(larger variance/smaller variance)
Hemacytometer ✔✔# cells/mm^3 = # cells counted x depth x dilution factor / total area covered
Henderson-Hasselbalch equation ✔✔pH = pKa + log[A-]/[HA]
INR ✔✔patient's PT value / laboratory's mean PT value
Kleihauer-Betke Acid Elution Test ✔✔% fetal cells = (# fetal cells counted / 1000 adult cells
counted) x 100
Vials of RhIG ✔✔(% fetal cells x 50)/ 30
Osmolality ✔✔1.86 (Na+) + (glucose)/18 + (BUN)/2.8
SDI ✔✔(Result from lab - Peer Group Result)/Standard deviation of peer group
MCV (fL) ✔✔(Hct/RBC count) x 10
MCH (pg) ✔✔(Hgb/RBC count) x 10
MCHC (g/dL) ✔✔(Hgb/Hct) x 100
RDW (%) ✔✔(Standard deviation of MCV/Mean MCV) x 100
RPI ✔✔(Reticulocyte count x reticulocyte index / maturation factor)
% Reticulocytes ✔✔(# of reticulocytes counted per 1000 RBCs/1000) x 100
Celsius to Fahrenheit ✔✔(9/5 degrees C) + 32
Fahrenheit to Celsius ✔✔(degrees F - 32)(5/9)
Absorbance ✔✔2 - log%T
Concentration of unknown ✔✔(concentration of standard)(absorbance of unknown)/absorbance
of standard
Creatinine clearance ✔✔((UV)/P) x (1.73 m2 / body surface area of patient from nomogram)
Transferrin saturation ✔✔(serum iron/TIBC) x 100
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