Question

1. A gradual increase or decrease in control value results, though still in range, that continues for several days is a:
   1. delta check error.
   2. trend.
   3. random error.
   4. control error.
2. At what level will a phlebotomist be involved in Levey-Jennings charts?
   1. To record delta checks
   2. To record control data
   3. To record random errors
   4. To record systemic errors
3. A delta check is:
   1. used to confirm the validity of patient results.
   2. a shift or a trend in control values.
   3. the degree of calibration needed for an instrument.
   4. the act of checking and rechecking results prior to reporting.
4. A phlebotomist explains why the specimen must be collected at a specific time and that the result is affected by the time of day and whether the patient has been moving. That phlebotomist is explaining diurnal variations, which is a part of ________ to guarantee quality results.
   1. quality control (QC).
   2. validation.
   3. proficiency testing (PT).
   4. quality assurance (QA).
5. Validation is used to assess:
   1. individual competency.
   2. laboratory proficiency.
   3. consistency of results.
   4. trends in test results.
6. When collecting a specimen for blood culture, some blood is placed into an anaerobic bottle and will be exposed to a(n):
   1. oxygen-rich environment.
   2. room air environment.
   3. oxygen-free environment.
   4. gas-free environment.
7. False positive blood culture results may occur due to:
   1. circular cleaning of the puncture site.
   2. allowing the cleaning agent to dry on the skin.
   3. wiping the tube stopper with alcohol prior to collection.
   4. re-palpating the puncture site after cleansing.
8. Blood cultures may be collected using all of the following EXCEPT:
   1. an evacuated tube system.
   2. a syringe and transfer device.
   3. a winged infusion (butterfly) set.
   4. dermal puncture lancets.

Answer 1

i hope you will rate my answer positively-

In Q4 the correct option is D quality assurance because it is very important to assure it without assurance the test results can't be find.

In q5.the correct option is C, consistency of results because the main objective is that to show manufacturing process produces a device consistently and reliable.

In Q6. the correct option is C , oxygen free environment because these bacteria also require some amount of oxygen for survival .

In Q7. the correct options is D , repalpating the puncture site after cleansing.because it cause contamination and it lead to false positive result.

In Q 8.The most correct option is D, dermal puncture lancets , because it cannot be use in each and every patient.

In Q1, the correct option is B , trend.

In Q2, the correct option is B, to record control data.

thankyou.