UPDATE/PRACTICE QUESTIONS AND CORRECT VERIFIED
ANSWERS( COMPLETE VERIFIED SOLUTIONS ) ASSURED
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what is the most common lipoprotein electrophoresis
support medium? -
ANSWER-
agarose gel
what is noted as an additional risk factor for CHD and CVD? -
ANSWER-Lp(a)
criteria for diagnosis of metabolic syndrome? - ANSWER-3 or
more of the following:
- abdominal obesity: Waist circumference greater than 35 in
(88cm) in women or 40 in (102) cm in men
- Triglycerides greater than 150 mg/dL (1.7 mmol/L)
-* high density lipoproteins less than 50mg/dL in women or less
than 40 mg/dL in men*
-* blood pressure greater than 130/85 mmHg*
- fasting plasma glucose greater than 100 mg/dL
,how is quality control material used? - ANSWER-ensures
that calibration,
reagents, and instruments are working
correctly.
the amount of chloride in a solution is ____ to the time
required o generate
sufficient silver ions to titrate chloride - ANSWER-
proportional
what is the most common method to test for
chloride? - ANSWER-
spectrophotometric
method 2
what is the reference method for chloride? - ANSWER-
chloridometry
what can interfere with a chloride measurements -
ANSWER-bromide
iodide
3 forms tCO2 is found in: - ANSWER-ionized
bicarbonate (90%)
,dissolved
CO2
carbamino
compound
for every glucose there is approx. ___ molecules of CO2
produced – ANSWER-6
what is the second most important anion in extracellular fluid?
- ANSWER-total
CO2
(HCO3-)
WHY is quality control material used? - ANSWER-to ensure
the reliability of
each measurement performed on a
patient sample.
QC material does not detect these types of variation: -
ANSWER-inter- individual intra-indiv pre analytical post
analytical
systematic analytical variation is considered _____. - ANSWER-
predictable
, what is an example of a random analytical error? - ANSWER-
pipetting errors
what is an example of post analytical variation? - ANSWER-
variations due to
recording and transmitting patient data to
the physician
What is the allowable range for analytical error? - ANSWER-+/-
2 SD
A delta check refers to - ANSWER-comparing current test
results with previous
one
What percentage is under the gaussian curve +-1 SD? -
ANSWER-68.2%
what percentage is under the gaussian curve +/- 2SD? -
ANSWER-95.5%
the accuracy is associated with: - ANSWER-systematic error
the precision is associated with: - ANSWER-random error