FINALS LABORATORY TOPICS Flashcards
Routine or Commonly used total protein method
Biuret Quantitative Colorimetric Method
Principle of total protein?
Biuret Quantitative Colorimetric Method
Biuret Reaction
TOTAL PROTEIN
Volume of biuret reagent: ?
Volume of serum: ?
Volume of biuret reagent: 1 mL
Volume of serum: 10 uL
TOTAL PROTEIN
Total protein after addition of reagents should be left to stand at what temp and fow how many mins?
RT for 5 mins.
TOTAL PROTEIN
End Products and Color
Cuprous Protein Complex (purple/violet)
TOTAL PROTEIN
Absorbance of total protein
550 nm
TOTAL PROTEIN
SI unit of total protein?
g/L
TOTAL PROTEIN
How to convert g/dL to gL for total protein?
mutiply by 10
TOTAL PROTEIN
Reference value of total protein>
6.5 to 8.3 g/dL
TOTAL PROTEIN
more than 8.3 g/L indicates what condition for total protein?
Hyperproteinemia
Increased
TOTAL PROTEIN
less than 6.5 g/L indicates what condition for total protein?
Hypoproteinemia
Decreased
TOTAL PROTEIN
Reference method for total protein?
Kjeldahl Method
TOTAL PROTEIN
Principle of kjedahl method?
Polypeptide bonds + cupric ions in an alkaline medium
ALBUMIN
Most common/Routine method for albumin
Bromcresol green
ALBUMIN
Most sensitive method for albumin detection?
Bromcresol purple
ALBUMIN
Principle for albumin?
Bromcresol Green
Dye Binding
ALBUMIN
Volume of albumin reagent: ?
Volume of serum?
Volume of albumin reagent: 1 mL
Volume of serum: 10 uL
ALBUMIN
After addition of reagents, for what temp and how many minutes should sample be left to stand?
RT for 30 mins
ALBUMIN
End Products and Color of albumin?
Green-Colored Complex
ALBUMIN
Absorbance of albumin?
550 nm
ALBUMIN
How to convert g/dL to g/L for albumin?
mutiply by 10
ALBUMIN
Reference values?
3.5 to 5.5 g/dL
ALBUMIN
more than 5.5 g/dL indicates what clinical significance for albumin?
hyperalbuminemia
GLOBULIN
For getting globulin value, what formula should be used?
G = TP - Albumin
GLOBULIN
Reference value?
2.3 to 3.5 g/dL
What is the Albumin:Globulin Ratio?
1.3 - 3:1
Globulin
Higher globulin value in A:G ratio indicates what clinial signifiance?
with multiple myeloma/ Waldenstrom macroglobulinemia
(increased IgM and IgG)
BILIRUBIN
Method of bilirubin detection?
Modified Evelyn-Malloy Method
BILIRUBIN
Principle of bilirubin detection?
Diazotization
BILIRUBIN
Volume of bilirubin reagent: ?
Volume of serum: ?
Volume of antioxidant: ?
TOTAL BILIRUBIN
Volume of bilirubin reagent: 1 mL
Volume of serum: 50 ul
Volume of antioxidant: 1 drop
BILIRUBIN
In total bilirubin detection, what temp and how many minutes should sample be left to stand?
TOTAL BILIRUBIN
RT for 5 mins
BILIRUBIN
Volume of bilirubin reagent: ?
Volume of serum: ?
Volume of antioxidant: ?
DIRECT BILIRUBIN
Volume of bilirubin reagent: 1 mL
Volume of serum: 10 ul
Volume of antioxidant: 1 drop
BILIRUBIN
In Direct bilirubin detection, what temp and how many minutes should sample be left to stand?
DIRECT BILIRUBIN
RT for 3 mins
BILIRUBIN
End Products and Color
Azobilirubin (pink-purple)
BILIRUBIN
Absorbance
540 nm
BILIRUBIN
SI unit of bilirubin?
umol/L
BILIRUBIN
How to convert mg/dL to umol/L for bilirubin?
multiply by 17.1