ASCP

pbt has just completed centriuging specimens for the chemistry department and notes that one of the tubes is cloudy and pinkish red. This specimen is Correct Answer: lipemic and hemolyzed this test will be delivered to immunology for testing Correct Answer: RPR physician calls the lab requesting the procedure for a patient who wishes to donate his own blood before his surgery. this type of donation is knowns as: Correct Answer: Autologous donation analysis of the chemical components ...

What type of serological testing does the blood bank technologist perform when determining the blood group of a patient? Correct Answer: phenotyping If anti-K reacts 3+ with a donor cell with a genotype KK and 2+ with a Kk cell, the antibody is demonstrating: Correct Answer: Dosage Carla expresses the blood group antigens Fya, Fyb, and Xga. James shows expressions of none of these antigens. What factor(s) may account for the absence of these antigens in James? Correct Answer: Gender...

Nephelometry involves the measurement of A. Light scatter B. Atomic absorption C. Light absorption D. Light transmission - C. Light absorption When light strikes a particle in a solution, it can be absorbed, transmitted, reflected, or scattered. Nephelometry is used to measure the light scattered by particles in a solution. It is useful for measuring protein levels in fluids, and antigen-antibody complexes Most potent activator enzyme is A. Magnesium B. Sodium C. Potassium D. AOTA - A. Magnesium...

antler hyphae Correct Answer: M. audouinii What grows on chocolate agar Correct Answer: Haemophilus spp. *requires X and V factor Double zone of hemolysis and beta lactamase Correct Answer: Clostridium perfringens Which increases first after an MI Correct Answer: myoglobin Which of the following parasite cause autoinfection in immunocompromised px? Correct Answer: S. stercoralis Which of the following causes antibody against TSH? Correct Answer: hashimotos What RBC inclu...

Which formula correctly describes the relationship between absorbance ant % T? Correct Answer: A = -log T= log 1/T absorbance of light increases with increasing concentration of absorbing solution. Correct Answer: Beers Law If a fasting glucose was 90 mg/dL, which of the following 2-hour postprandial glucose results would most closely represent normal glucose metabolism? Correct Answer: 100 mg/dL (55mmol/L) A healthy person with a blood glucose of 80 mg/dL (4.4 mmol/L) would have a s...

Following overnight fasting, hypoglycemia in adults is defined as a glucose of: Correct Answer: <45 mg/dL (<2.5 mmol/L) Diagnosis of hypoglycemia in adults. The following results are from a 21-year-old patient with a back injury who appears otherwise healthy: whole blood glucose: 77 mg/dL (4.2 mmol/L) serum glucose: 88 mg/dL (4.8 mmol/L) CSF glucose: 56 mg/dL (3.1 mmol/L) The best interpretation of these results is that: Correct Answer: all values are consistent with a normal h...

Diurnal variation Correct Answer: Changes in concentration of an analyte based on the time of the day (measured at day vs. night time) What is increased in the AM? (b/c of diurnal variation) Correct Answer: ACTH, Cortisol, Iron ACTH role Correct Answer: adrenocorticotropic hormone- stimulates adrenal cortex to secrete CORTISOL How does stress affect chemistry values? Correct Answer: Increase in ACTH, cortisol, and catecholamines Catecholamines Correct Answer: Hormones made by ad...

Which of the following condition is the most common cause of increase anion gap? A.Metabolic alkalosis B. Metabolic acidosis Respiratory acidosis Respiratory alkalosis Correct Answer: B. Metabolic acidosis High anion gap metabolic acidosis is caused generally by the body producing too much acid or not producing enough bicarbonate. This is often due to an increase in lactic acid or ketoacids, or it may be a sign of kidney failure. More rarely, high anion gap metabolic acidosis may be caus...

Aldosterone is released by the adrenal cortex upon stimulation by: A. Renin B. Angiotensinogen C. Angiotenisinogen I D. Angiotensinogen II Correct Answer: D. Angiotensinogen II Clinical Assays for tumor markers are most important for: A. screening for the presence of cancer B. monitoring the course of known cancer C. confirming the absence of disease D. identifying patients at risk for cancer Correct Answer: B. Monitoring the course of known cancer Detection of which of the fol...

Name the locations of active marrow in adults: - sternum, skull, ribs, pelvis, vertebrae Where does hematopoiesis take place during the first 2 months of gestation? - yolk sac Where does the majority of hematopoiesis take place during the 2nd through 7th month of gestation? - spleen When does the bone marrow take over hematopoiesis? - after birth What are the stages in order of the erythrocyte lineage? - (1)rubriblast, (2)prorubricyte, (3)rubricyte, (4)metarubricyte, (5)reticulocyte, (6)erytrocy...