Complete BOC- ASCP prep Questions & Answers Solved 100% Correct!!

1) After receiving a 24 hr. urine for quantitative total protein analysis the technician must first: a. subculture the urine for bacteria b. add the appropriate preservative c. screen for albumin using a dipstick d. measure the total volume - Answer-d (measure the total volume) 1) Following overnight fasting, hypoglycemia in adults is defined as a glucose of: a. <70 mg/dL (<3.9 mmol/L) b. <60 mg/dL (<3.3mmol/L) c. <55 mg/dL (<3.0mmol/L) d. <45mg/dL (<2.5mmol/L) - Answer-d (Diagnosis of hypoglycemia in adults.) 1) Proper media for culture of a urethral discharge from a man include: a. sheep blood and phenylethyl alcohol agars b. eosin methylene blue and sheep blood agars c. thioglycollate broth and chocolate agar d. chocolate agar and modified Thayer Martin agar - Answer-d (Chocolate agar and chocolate agar-based selective media should be used for recovery of Neisseria gonorrhoeae from urethral discharge. Chocolate agar provides the nutrients required by N gonorrhoeae and selective media contains antimicrobial agents that inhibits other organisms and permits recovery of pathogenic Neisseria.) 1) The light-colored zone adjacent to the nucleus in a plasmacyte is the: a. ribosome b. chromatin c. mitochondria d. Golgi area - Answer-d (Morphological identifiable perinuclear halo.) 1) The minimum Hgb concentration in a fingerstick from a male blood donor is:a. 12.0 g/dL (120 g/L) b. 12.5 g/dL (125 g/L) c. 13.5 g/dL (135 g/L) d. 15.0 g/dL (150 g/L) - Answer-b (All donors, regardless of sex, require a minimum hemoglobin of 12.5 g/dL [125 g/L]. The value must not be performed on an earlobe stick.) 10) A 45 yr. old woman has a fasting serum glucose concentration of 95 mg/dL (5.2 mmol/L) and a 2 hr. postprandial glucose concentration of 105 mg/dL (5.8 mmol/L). The statement which best describes this patient's fasting serum glucose concentration is: a. normal; reflecting glycogen breakdown by the liver b. normal; reflecting glycogen breakdown by skeletal muscle c. abnormal; indication diabetes mellitus d. abnormal; indicating hypoglycemia - Answer-a (Factors contributing to PBS.) 10) During the preparation of Platelet Concentrates from whole blood, the blood should be: a. cooled towards 6 C b. cooled towards 20-24 C c. warmed to 37 C d. heated to 57 C - Answer-b (Platelets are prepared and stored at 20-24 C for optimum function.) 10) Failure to observe RBC casts in a urine specimen can be caused by: a. staining the specimen b. centrifuging an unmixed specimen c. mixing the sediment after decantation d. examining the sediment first under low power - Answer-b (centrifuging an unmixed specimen) 10) In order for hemoglobin to combine reversibly with oxygen, the iron must be: a. complexed with haptoglobin b. freely circulating in the cytoplasm c. attached to transferrind. in the ferrous state - Answer-d (Functional form of Fe [reduced].) 10) The mean value of a series of hemoglobin controls was found to be 15.2 g/dL, and the standard deviation was calculated at 0.20. Acceptable control range for the laboratory is +/- 2 standard deviations. Which of the following represents the allowable limits for the control? a. 14.5 - 15.5 g/dL b. 15.0 - 15.4 g/dL c. 15.2 - 15.6 g/dL d. 14.8 - 15.6 g.dL - Answer-d (Standard deviation is a measure of the dispersion of data around the mean.) 10) Which selective medium is used for the isolation of gram-positive microorganisms? a. Columbia CNA with 5% sheep blood b. trypticase soy agar with 5% sheep blood c. eosin methylene blue d. modified Thayer-Martin - Answer-a (Columbia CNA agar contains colistin and nalidixic acid, which inhibit most gram-negative organisms. Eosin methylene blue is selective and inhibits gram-positive organisms and modified Thayer Martin is selective and inhibits gram-positive organisms, gram-negative bacilli and yeast.) 100) Gram-positive cocci in chains are seen on a Gram stain from a blood culture. The organism grows as a beta-hemolytic colony. Further tests that could be performed include: a. bile esculin, PYR, bacitracin, and hippurate b. catalase and coagulase c. oxidase and deoxyribonuclease d. Voges-Proskauer and methyl red - Answer-a (Bile esculin, PYR, bacitracin and hippurate are biochemicals/tests used in the presumptive or definitive identification of beta-hemolytic streptococci such as S pyogenes, S agalactiae and Enterococcus.)