Accuracy studies are estimated using the following, except:
- interference
- patient-sample comparison
- standard deviation
- recovery
standard deviation
Ratio: measures precision, not accuracy.
What is the reference method for glucose?
- dextrostics
- hexokinase
- glucose oxidase
- folin wu
hexokinase
It is the 4th marker of down syndrome
- hCG
- AFP
- haptoglobin
- inhibin A
- none
Inhibin A
ratio: Gonadotropins inhibited by Inhibin A
It is the redox reaction used for monosodium urate
- uricase method
- HPLC
- IDMS
- Caraway method
- none
Uricase method
Rario: converts UA to allantoin
Which of the following assays are influenced by diurnal variation?
I. Cortisol II. ACTH III. ACP IV. RENIN
- I only
- I and II
- I, II, III
- I, II, III, IV
I, II, III, IV
Ratio:
Cortisol - peak AM
ACTH - peak AM
ACP - show diurnal variation
Renin - higher in AM
Greatest increase in LDH is seen in?
- pernicious anemia
- bone disease
- AMI
- liver disease
- none
Pernicious anemia
Ratio: 10-50x increase same with Hemolytic disorders
In the Fiske Subbarow method, this compound is used as the reducing agent:
- ammonium molybdate
- stannous chloride hydrazine
- phosphomolybdenum hydrazine
- molybdenum blue
- none
stannous chloride hydrazine
What is the role of aluminum magnesium silicate in Lloyd’s method for creatinine?
- reducing agent
- removes interferences
- improves color
- extracting agent
removes interferences
Ratio: aluminum magnesium silicate (fuller’s earth). Removes interferences preventing interferences from creatinine.
