The mean for a serum uric acid control was determined to be 5.8 mg/dL, with 1 SD = 0.15 mg/dL. If the confidence limit for the instrument is set to +/-2 SD, what would be the allowable limits for this control?

Which of the following terms identifies the chemical reagent with the highest purity?

A patient has severe anemia of chronic disease. Which of the following red cell index values best correlated with the expected blood smear morphology?  

What is the total magnification produced when using a 10X ocular lens and a 40X objective lends on a light microscope?

An amylase result is 550 U/L. A 1:4 dilution of the specimen in saline gives 180 U/L. The dilution is repeated with the same results. The clinical laboratory scientist should

A pre-pooled 5-packs of cryoprecipitate were thawed today at 0800. What is the new expiration date and time (shelf-life) of this component?

A complete metabolic profile (CMP) was ordered on a patient at 0600 and was collected into a serum separator tube (SST) spun and the serum separated. At 1000 a consulting physician ordered a cold agglutination titer on the blood sample previously drawn. What action should the Clinical Laboratory Scientist take?

Neisseria meningitidis can be differentiated from N. gonorrhoeae by demonstration of acid production from:

Reproducibility can be described as:

An isolate is inoculated to a conventional nitrate broth with Durham tube. After 24 hours of incubation, no gas is present in the Durham tube. Equal amounts of sulfanilic acid and alpha-naphthylamine are added. No color change is noticed. This indicates that the organism