ASCP|American Society for Clinical Pathology|Bundle

c antigen is most common in blacks and whites; anti-c would be most common reactive CORRECT ANSWER Rh antibodies show enhanced reactivity with enzyme pretreated cells. The M and Fya antigens are cleaved from enzyme pretreated cells and therefore there would be no reaction between enzyme pretreated c...

B; 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 ...

CML vs. Leukemoid Reaction CORRECT ANSWER CML - decreased leukocyte alkaline phosphatase (LAP) Leukemoid Reaction - increased LAP Look-back CORRECT ANSWER The process for the identification and notification of recipients of blood components from prior donations of who now test positive for HCV, ...

Which of the following lamps provides a continuous spectrum of radiant energy in the visible, near IR, and near UV regions of the spectrum? A. Tungsten-filament B. Hydrogen C. Deuterium D. Mercury vapor CORRECT ANSWER A most common light source for photometry in the visible region. continuous sp...

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 CORRECT ANSWER adrenocorticotropic hormone- stimulates adrenal ...

Radiant Energy CORRECT ANSWER Characterized as a spectrum from short wavelength to long wavelength: cosmic, gamma rays, X-rays, UV, visible, infrared, microwaves, radio waves Wavelength CORRECT ANSWER The distance traveled between one complete wave cycle (distance between two successive crests) m...

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 t...

In absorption spectrophotometry, what relationship is absorption to concentration? CORRECT ANSWER Absorption is directly proportional to concentration. What is the equation for Beer's law? CORRECT ANSWER A= a x b x c Where "a" equals absorptivity coefficient (a constant); "b" is the path le...

Which one of the following statements about acetaminophen metabolism is false? Choose the single best answer A. It is metabolized in the kidney B. It is largely metabolized in the liver to glucuronide and sulfonate conjugates C. A small amount is metabolized via cytochrome oxidase to a react...

Diurnal variation ↑ in am: CORRECT ANSWER ACTH, cortisol, iron Diurnal variation ↑ in pm: CORRECT ANSWER growth hormone, PTH, TSH Day-to-day variation CORRECT ANSWER ≥ 20% for ALT, bili, CK, steroid hormones, triglycerides Alcohol causes what chemistry levels to fluctuate? CORRECT ANS...

Bilirubin, total CORRECT ANSWER 0.2 - 1 mg/dL Increased: liver disease, hemolysis > 20 mg.dL associated with brain damage Conjugated bilirubin (direct) CORRECT ANSWER < 0.2 mg/dL Increased: liver disease, obstructive jaundice Unconjugated bilirubin (indirect) CORRECT ANSWER < 0.8 m...

THE EXPECTED BLOOD GAS RESULTS FOR A PATIENT IN CHRONIC RENAL FAILURE WOULD MATCH THE PATTERN OF: CORRECT ANSWER METABOLIC ACIDOSIS (REDUCED EXCRETION OF ACIDS) SEVERE DIARRHEA CAUSES: CORRECT ANSWER METABOLIC ACIDOSIS (EXCESSIVE LOSS OF BICARBONATE) PH 7.18 PO2 86MM HG PC02 60MM HG 02 SAT ...