35 Free Test Bank for Clinical Laboratory Chemistry by Sunheimer Multiple Choice Questions

35 Free Test Bank for Clinical Laboratory Chemistry by Sunheimer Multiple Choice Questions is famous for its balance of theory and application of clinical laboratory chemistry understanding. This is a great collection of 35 free test bank questions and answers which concentrate on analysis and information related to laboratory services specific to chemistry that assist in patient care. This test will cover many core issues of clinical laboratory chemistry and explain anything in a simple and very easy to understand. This test is also reviewed to be at the appropriate level because of its tiered objectives. To upgrade your medical understanding, click to take this test as soon as possible. Act fast!

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How many grams of sodium hydroxide (NaOH) are required to prepare 250 mL of a 1.00 molar solution?

• A. 2.5 g
• B. 10.0 g
• C. 25.0 g
• D. 100 g

What is the concentration in mg/dL of a 140 mEq/L sodium standard?

• A. 0.323 mg/dL
• B. 3.23 mg/dL
• C. 32.3 mg/dL
• D. 322 mg/dL

Convert 75 mg/dL to mg/L.

• A. 7.5 mg/L
• B. 75.0 mg/L
• C. 750 mg/L
• D. 7500 mg/L

A patient’s creatinine is outside the linear range of the analyzer; 10 uL of serum is added to 90.0 uL of diluent and the diluted sample is reanalyzed. The creatinine value of the diluted sample is 1.0 mg/dL. Which of the following creatinine values is correct?

• A. 1.0 mg/dL
• B. 10.0 mg/dL
• C. 20.0 mg/dL
• D. 100 mg/dL

What is the molarity of a 20.0% w/v glucose solution?

• A. 0.111 molar
• B. 1.11 molar
• C. 2.22 molar
• D. 11.1 molar

Convert 70.0 mg/dL glucose to mmol/L glucose.

• A. 3.89 mmol/L
• B. 38.9 mmol/L
• C. 70.0 mmol/L
• D. 389 mmol/L

Which of the following should not be storied in borosilicate glass because it will etch the inside surface of the glass container?

• A. Saline
• B. Strong bases (caustics)
• C. Clinical laboratory reagent water
• D. Weak acids

Convert 145 mEq/L sodium standard to mmoles/L.

• A. 14.5 mmol/L
• B. 145 mmol/L
• C. 167 mmol/L
• D. 333 mmol/L

According to CLSI, the resistivity of clinical laboratory reagent water (CLRW) must be:

• A. > 100 milliamps.
• B. < 10 millivolts.
• C. > 10 ohm cm.
• D. < 10 ohm cm.

A 0.22-micron filter will remove:

• A. Particles with a diameter of 0.01 microns.
• B. Particles with a diameter of 0.01 nanometer.
• C. Particles with a diameter of 2.2 microns.
• D. Only sodium chloride crystals.

Care must be taken before selecting polyethylene plastic for use as test tubes and disposable transfer pipets because:

• A. Polyethylene can bind or absorb proteins, dyes, stains, and picric acid.
• B. Polyethylene does not bind or absorb proteins, dyes, stains, and picric acid.
• C. Polyethylene cannot be used to pipet serum.
• D. Polyethylene forms insoluble salts in the presence of sodium chloride.

Low actinic glassware has which of the following properties:

• A. High thermal resistance with no color added to the glass.
• B. Low thermal resistance with a green-yellow color added as an integral part of the glass.
• C. High thermal resistance with a blue color added as an integral part of the glass.
• D. High thermal resistance with an amber or red color added as an integral part of the glass.

Calculate the chloride concentration in milliequivalents per liter of a solution prepared by diluting 20 g of barium chloride to 1L.

The surface area of a laboratory bench measures 12 square feet. What is the surface area in square meters?

• A. 1.115 square meters
• B. 11.15 square meters
• C. 111.5 square meters
• D. 1115 square meters

Which of the following classes of glassware, including pipets, is manufactured and calibrated to deliver the most accurate volume of liquid?

• A. A
• B. B
• C. AA
• D. C

If 10 mL of sample is added to 190 mL of diluent, what is the dilution factor?

• A. 10
• B. 19
• C. 20
• D. 25

A 1 to 4 dilution must be prepared to make a total volume of 100.0 uL. How much serum must be used?

• A. 0.025 uL
• B. 0.25 uL
• C. 2.5 uL
• D. 25 uL

What is the molality of a solution that contains 330 g of CaCL2 per kilogram?

• A. 3.0 molal
• B. 3.3 molal
• C. 33.0 molal
• D. Unable to determine

A solution contains 45 g/100 mL of glucose. It is diluted 1/10 and rediluted 1/10. What is the concentration of the final solution?

• A. 45.0 g/100mL
• B. 4.5 g/100 mL
• C. 0.45 g/100mL
• D. 0.045 g/100mL

If a thermometer reads 39 degree F, what is the equivalent degree Celsius?

• A. 0.39 degree C
• B. 3.9 degree C
• C. 39 degree C
• D. 40 degree C

The electrical resistance measured between opposite faces of a 1.00 cm cube of an aqueous solution at a specified temperature is termed:

• A. Resistivity.
• B. Conductivity.
• C. Amperometry.
• D. Voltammetry.

How many milliliters of a 2.0M solution is required to prepare 50 mL of a 0.3M solution?

• A. 0.075 ml
• B. 0.75 ml
• C. 7.5 ml
• D. 75 ml

A 24-hours stool specimen weights 0.50 pounds. What is the weight in kilograms?

• A. 0.0226 kilograms
• B. 0.2265 kilograms
• C. 2.265 kilograms
• D. 22.65 kilograms

The unit of resistivity is:

• A. Amperes.
• B. Volts.
• C. Coulombs.
• D. cm

What is the normality of a 1.5 molar H2SO4 solution?

• A. 1.0 N
• B. 1.5 N
• C. 3.0 N
• D. 36 N

Convert 200 picograms to grams.

• A. 2.0 x 10–10 grams
• B. 2.0 x 10–8 grams
• C. 20.0 grams
• D. 200 grams