Microscopic Technique Flashcards
Recommended volume for urine sediment preparation
12 mL
Centrifuge force of urine sediment preparation
400 RCF for 5 minutes
Remaining urine decant volume should be at
0.5 to 1.0 mL
Sediment volume when transferring to glass slide
20 uL or 0.02 mL
Glass slide coverslip measurement
22 x 22 mm
If < 12 mL urine is available for microscopy centrifuge
3 mL of it
If <3 mL urine is available, examine the urine by
without centrifugation
RCF formula
1.118 x 10^-5 x radius in centimeters x RPM^2
Quantitative measure of formed elements of urine using
Hemacytometer
Normal values of Addis count RBC
0-500,000/12 hr urine
Normal values of WBCs and ECs Addis count
0-1,800,000/ 12 hr urine
Normal values: Hyaline casts addison count
0-5,000/12 hr urine
Located in the objective and is adjusted to be near the specimen
First lens system
Located in the eyepiece (ocular lens)
Second lens system
Ability to distinguish 2 small objects that are a specific distance apart
Resolution
Microscopes requiring minimum adjustment when switching objectives
Parfocal
Used to remove dust on the optical surface of the microscope
Camel hair brush
Used to clean the optical surfaces of the microscope
Lens paper
Used to clean any contaminated lens
Commercial lens cleaner
To remove oil on lens
use dry lens paper > lens paper moistened w/ lens cleaner