Dilutions
What is the final concentration of a 7500mg/ml solution diluted 1:5?
7500 mg/ml divided by 5
1500 mg/ml
What does BUN stand for and what organ function does it test for?
Blood Urea Nitrogen
The objective lenses on a microscope are all always magnified by:
10X
Purple tops and Green tops both contain an anticoagulant, what anticoagulant is in the Purple top?
EDTA
What is the study of fungi?
Mycology
A 100% solution is diluted 1:2. It is then diluted again, 1:2. What is the final concentration after all dilutions?
100 divided by 2 = 50
then 50% divided by 2
Answer: 25%
The ability of a test to be accurate and precise?
Reliability
Tuberculin syringes have calibration marks measured in international units!
False
When drawing blood from a patient, it is safe to say, using a green top or a purple top should allow you to run plasma?
True
In Mycology, what is the most common cause of diagnostic failure?
Improper aseptic technique
Using the following dilution, 3:60, how many parts sample are needed? (simplify)?
1 part x 20
1 part x 20
1 part x 20
= 60 therefore its 1 part
This term refers to the thickness of a solution or its ability to flow?
Viscosity
This particular syringe is available in volumetric capacities of 0.3ml and 1.0ml and comes in U-100 and U-40?
Insulin needles
500 mg/ml, now dilute, match the concentration and find the original concentration
500 mg/l with 1:4 (500/4 = 125 mg/ml)
Diluent in 3:8 =
Dilute 1:10 then 1:2 (500/10 then 500/2 = 25 mg/ml)
FC=100mg/ml (500 mg/100mg/ml = 1:5)
FC=62.5mg/ml (500 mg/ml/62.5 mg/ml= 1:8)
IF YOU COMPLETED THESE FORMULAS FIRST, YOU WILL HAVE YOUR FINAL ANSWER
Select all answers that are chemistry analyzer tests for Kidney function?
BUN and CREAT
When drawing blood on a fractious patient, it is best to pull the plunger back quickly and draw the blood as fast and as painless as possible!
False (can cause hemolyzing)
Amylase and Lipase are blood tests that evaluate the kidneys!
False
These pieces of disposable lab equipment come in graduated or transfer?
Pipettes
Which test is an indication of the patient's ability to stop bleeding on their own?
BMBT and Coagulation
Which of the following can be read using the refractometer?
Total protein
What test preparation involves spreading blood between two slides, @ 30ยบ angle, to create a feathered edge for evaluating blood cells (used in differentials)?
Wedge smear
When a 50ml syringe has the capability to hold 10ml extra, what is the calibration mark for that extra 10mls?
5 ml
When referring to any body fluid sample, cloudy and thick with suspended materials means?
Turbid