Which of the following information about molarity is CORRECT?
- Molarity expresses the number of moles of substance in 1 liter (1000 mL) of solution
- It is expressed as moles per liter (mol/L) or millimoles per milliliter (mmol/mL)
- It is calculated by the formula: π=(πππππ /πππ‘ππ)/πΊππ
- All of these
All of these
Convert 100 mg/dL to g/dL
- 100 g/dL
- 1.0 g/dL
- 0.10 g/dL
- 10.0 g/dL
0.10 g/dL
What hazard is positioned at the bottom of the NFPA Hazards Identification System?
- Specific
- Stability
- Flammability
- Health
Specific
Correct order of draw:
1.Non additive tube
2.Blood culture tube
3.Lavender top
4.Blue top
5.Green top
6.Gray top
- 2-1-4-5-3-6
- 2-4-1-5-3-6
- 2-1-4-3-5-6
- 2-4-1-3-5-6
2-4-1-5-3-6
How would you prepare a 1:10 dilution of urine?
- One part of urine in ten parts of diluent
- One part of urine in nine parts of diluent
- Two parts of urine in five parts of diluent
- Five parts of urine in two parts of diluent
One part of urine in nine parts of diluent
When comparing a potential new test with a comparative method in order to bring a new method into the laboratory, one observes error that is consistently affecting results in one direction. What is this type of error known as?
- Systematic error
- Random error
- Constant systematic error
- Proportional systematic error
Systematic error
What percentage of values will fall between Β±2SD in a Gaussian distribution curve?
- 34.13%
- 68.26%
- 95.45%
- 99.74%
95.45%
Which of the following lipoproteins accounts to the turbidity of post prandial plasma?
- High density lipoproteins
- Low density lipoproteins
- Chylomicrons
- Very low density lipoproteins
Chylomicrons
A chemistry assay utilizes bichromatic analysis. This means that the absorbance readings are taken at
- 2 wavelengths so that 2 compounds can be measured at the same time
- 2 wavelengths to correct for spectral interference from another compound
- The beginning and end of a time interval to measure the absorbance change
- 2x and then are averaged to obtain a more accurate result
2 wavelengths to correct for spectral interference from another compound
Which instrument requires a primary and secondary monochromator?
- Flame photometer
- Atomic absorption spectrophotometry
- Fluorometer
- Nephelometer
Fluorometer
In electrophoresis of proteins, when the sample is placed in an electric field connected to a buffer of pH 8.6, all of the proteins:
- Have a positive charge
- Have a negative charge
- Are electrically neutral
- Migrate toward the cathode
Have a negative charge
Not true regarding type I diabetes mellitus, EXCEPT:
- Not prone to ketoacidosis
- Accounts to majority of the cases of diabetes mellitus
- It is also known as the juvenile onset diabetes mellitus
- It is also known as the non-insulin dependent type of diabetes mellitus
It is also known as the juvenile onset diabetes mellitus
Pregnant women who had gestational diabetes mellitus are at risk of having type II diabetes mellitus within ______.
- 1 to 5 years
- 5 to 10 years
- 5 months to 1 year
- 1 to 5 months
5 to 10 years
Whole blood tend to give approximately ______ glucose readings than plasma or serum.
- 5-10% higher
- 5-10% lower
- 10-15% higher
- 10-15% lower
10-15% lower
The migration pattern of the albumins and globulins is:
- Alpha-1, beta, alpha2, gamma
- Albumin, beta, gamma, alpha-1, alpha-2
- Alpha-1, alpha-2, albumin, beta, gamma
- Gamma, beta, alpha-2, alpha-1, albumin
Gamma, beta, alpha-2, alpha-1, albumin
