IT Certification Exam Questions & Answers

Q288. The division of Department of Health and Human Services (DHHS) responsible for protecting public health by ensuring the safety and efficacy of foods, drugs, biological products, medical devices, and cosmetics is:

Q289. To prevent blood from clotting the specimen must be:

Q290. Which of the following is a selective media recommended for the isolation of Clostridium difficile?

Q291. Serum alkaline phosphatase is produced in the bone, intestine, and the placenta- but not in the brain.
Serum alkaline phosphatase activity is derived from all of the following organs except:

Q292. Bacitracin susceptibility is a presumptive test for the identification of Lancefield group A Streptococcus.
Which of the following is a presumptive test for the identification of Lancefield group A Streptococcus:

Q293. Provide the equivalent measurement for 1 decimeter.

Q294. Standard precautions should be followed:

Q295. The mandatory waiting period between blood donations is 56 days, or eight weeks.
The accepted interval between blood donations is:

Q296. The normal pH of blood is 7.40. In order for most metabolic processes to take place, the pH must remain within a narrow range close to this value. The range is usually defined in adults as 7.35-7.45. If blood pH falls below 7.35, the blood becomes too acidic (acidosis). If blood rises above 7.45, the blood is too alkaline (alkalosis).
As blood pH decreases, the kidneys will retain bicarbonate (HCO3-) from the glomerular filtrate; therefore, bicarbonate is increased. However, in this case, the increased HCO3- could not compensate for the markedly elevated pCO2 (the respiratory component) and the condition that results is uncompensated respiratory acidosis.
What condition is indicated by the following blood gas results: Bicarbonate = 32 mmol/L (Normal = 22 – 26 mmol/L); pCO2 = 65 mm Hg (Normal = 35 – 45 mmHg); pH = 7.28 (normal = 7.35 – 7.45)

Q297. 1 SD = 68.3%, 2 SD = 95.5%, 3 SD = 99.7
As defined by a Gaussian distribution curve, what percentage of values would be expected to fall within two standard deviations of the mean:

Q298. The Westgard multi-rule 22S describes the scenario where two consecutive data points fall outside +2SD or
-2SD. If this occurs, then the run must be rejected. This situation is most likely caused by a systematic error.
Which of the following describes the Westgard multi-rule 22S?

Q299. The laboratory employee with a 4-year college degree who performs clinical analysis is the:

Q300. Which of the following legislation was developed to protect the privacy of all patient information in the health care?

Q301. What two glycoproteins are expressed on the surface of influenza A viruses and are used for subtyping of the viruses?

Q302. The correct answer for this question is 1300 mg/dL. The laboratorian performed a 1:4 dilution by adding 0.25 mL (or 250 microliters) of patient sample to 750 microliters of diluent. This creates a total volume of 1000 microliters. So, the patient sample is 250 microliters of the 1000 microliter mixed sample, or a ratio of 1:4.
Therefore, the result given by the chemistry analyzer must be multiplied by a dilution factor of 4. 325 mg/dL x
4 = 1300 mg/dL.
After experiencing extreme fatigue and polyuria, a patient’s basic metabolic panel is analyzed in the laboratory. The result of the glucose is too high for the instrument to read. The laboratorian performs a dilution using 0.25 mL of patient sample to 750 microliters of diluent. The result now reads 325 mg/dL. How should the techologist report this patient’s glucose result?

Q303. To obtain a serum sample for a stat test on a patient receiving anticoagulant therapy, the recommended tube is:
Question options:

Q304. Refrigerated temperatures, those close to 4 ºC, are recommended for the preservation of enzyme activity in a patient sample.
Chemistry
The recommended storage temperature for the preservation of activity for MOST enzymes is: