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Test bank For Clinical Chemistry Compre 9th Edition by Bishop Fody Questions & Answers with rationales
Test bank For Clinical Chemistry Compre 9th Edition by Bishop Fody Questions & Answers with rationales
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Test bank For Clinical ChemistryCompre 9th Edition by Bishop Fody
Questions & Answers with rationales
Which of the following is the percent concentration of a solution (w/v) containing 300g of MgCl2
dissolved in 2.5L of distilled water?
a. 12%
b. 13%
c. 24%
d. 25% - ANSa. 12%
Which of the following is the molarity of a solution containing 400g of HCl dissolved in 1.5 liters
of distilled water? (gms of HCl = 36)
a. 6.4M
b. 6.3M
c. 7.4M
d. 7.8M - ANSc. 7.4M
A 24-hour urine sample submitted to the laboratory for creatinine determination has a total
volume of 1500mL. A 1:200 dilution of the specimen was prepared by which of the following
procedure?
a. 0.1mL of urine added to 20mL of distilled water
b. 0.1mL of urine added to 1.9mL of distilled water
c. 0.2mL of urine added to 2.0mL of distilled water
d. 0.2mL of urine added to 1.8mL of distilled water
e. No answer - ANSE. No answer
Using the same date of item #3, the creatinine level of the diluted urine specimen obtained was
0.8mg/dL. Which of the following corresponds to the urine creatinine concentration of the
original sample?
a. 180mg/dL
b. 150mg/dL
c. 160mg/dL (0.8*200)
d. 100mg/dL - ANSc. 160mg/dL (0.8*200)
Which of the following is the normality of 100g H2SO4 dissolved in 500mL of distilled water?
(gmw HCl=36)
a. 12.5N
b. 11.1N
,c. 9.5N
d. 8.6N
e. No answer - ANSE. No answer
The following items are included under
pre-analytical phase of laboratory procedure?
a. Quality control program, machine calibration
b. Encoding of results, releasing of result form
c. Correct patient ID, checking of request forms, specimen preparation
d. AOTA - ANSc. Correct patient ID, checking of request forms, specimen preparation
Which of the following analytes should not be measured on hemolysed specimen?
a. BUN
b. K
c. Crea
d. AOTA - ANSb. K
Which of the following changes occur if there is a delay in separation of serum from the clotted
cells after centrifugation?
a. Lipid concentration
b. Increase in plasma proteins
c. Urea and Ammonium ions
d. AOTA - ANSd. AOTA
The following reasons maybe considered to reject the specimen EXCEPT:
a. Clots present in an anticoagulated specimen
b. Improper transport condition
c. Unlabeled of mislabeled specimen
d. NOTA - ANSd. NOTA
Which of the following evacuated tubes is a glycolytic inhibitor tube?
a. Yellow top tube
b. Green top tube
c. Blue top tube
d. Gray top tube - ANSd. Gray top tube
(Maam asuncion answered A tho...lol)
It is a comprehensive set of policies and procedures developed to ensure the accuracy and
reliability of laboratory testing:
a. Laboratory documentation
b. Quality assurance
c. Proficiency testing program
d. Qualitycontrol - ANSb. Quality assurance
, Significant role of quality control program includes the following EXCEPT:
a. Detects analytical processes
b. Monitor analytical processes
c. Monitor post analytical processes
d. Prevent the reporting of incorrect patient values - ANSc. Monitor post analytical processes
Which of the following statements DOES NOT refer to a standard solution?
a. It stimulates the chemical composition and physical characteristics of unknown specimen
b. A solution of known absolute concentrations
c. Its value is established by an analytical procedure different from that used in the clinical
laboratory
d. NOTA - ANSa. It stimulates the chemical composition and physical characteristics of
unknown specimen → this is the definition of a CONTROL
Which of the following activities is not associated with quality control program?
a. Assay of control samples
b. Personnel orientation
c. Instrument maintenance
d. Proficiency testing survey - ANSb. Personnel orientation
Control serum are run simultaneously with the known specimen to be able to check the
following EXCEPT:
a. Instrument
b. Chemical reagents
c. Patient's identification
d. Expertise on the medtech - ANSc. Patient's identification
Which of the following statements refer to analytical sensitivity?
a. Ability of an analytical procedure to measure small amounts of a component in a specimen
b. Ability of an analytical procedure to measure accurately one component in a specimen
without interference by other components that is also present
c. Ability of the procedure to measure an abnormally high concentration of analyte in a
specimen accurately
d. AOTA - ANSa. Ability of an analytical procedure to measure small amounts of a component in
a specimen
When checking for the validity of the test procedure, we always look at the control values and
compare them with:
a. Normal range
b. Reference range
c. Expected range
d. AOTA - ANSc. Expected range
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