Save
Busy. Please wait.
or

show password
Forgot Password?

Don't have an account?  Sign up 
or

Username is available taken
show password

why


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
We do not share your email address with others. It is only used to allow you to reset your password. For details read our Privacy Policy and Terms of Service.


Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't know
Remaining cards (0)
Know
0:00
share
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

Intro, Equipment

Intro, Equipment - VTT 234

QuestionAnswer
What is the centrifuge used for? To separate substances of different densities, that are in a solution.
When solid and liquid components are present in the sample, the liquid portion is called? Supernatant
When solid and liquid components are present in the sample, the solid portion is called? Sediment
Name two types of centrifuges. Hematocrit and Clinical
Name two types of clinical centrifuge heads? Horizontal (also known as "swing arm") and Angled
Incorrect loading can cause damage to what? Instrument and to the operator.
What is a refractometer used to measure? The refractive index of a solution.
What is Refraction? The bending of light rays as they pass from one medium (like air) into another medium (urine,..) with a different optical density.
What do you use to calibrate a refractometer to zero? Distilled water
Total protein will be a number between? 1-10
Specific gravity is always? A decimal (1.000 - 1.070)
Most chemistry analyzers used in veterinary practice utilize what? Photometry, electrochemistry
What is designed to measure the amount of light transmitted through a solution? Spectrophotometer
Electrochemical methods are usually used for the evaluation of? Electrolytes
Chemical analyzers are designed with specific electrodes that are configured to allow interaction with how many ions? One
What does OSHA stand for? Occupational Safety and Health Administration
What safety equipment does OSHA say needs to be available? Eyewash stations, fire extinguishers, spill kits, biohazard containers, protective gloves
What are some benefits of a hematology analyzer? Reduced labor, more complete, accurate, improvement of data reliability
Instrumentation methods include: Impedance analyzer, laser-based analyzer, QBC systems
What is an Impedance Analyzer? A passage of current across two electrodes, separated by a glass tube with a small opening or aperture.
Impedance analyzers are calibrated to? Count the cells based on their size.
What does QBC stand for? Quantitative Buffy Coat system
How does the Quantitative Buffy Coat system work? It uses differential centrifugation & estimation of cellular elements by measurements on an expanded buffy coat layer, in a specialized microhematocrit tube.
What are the common measurements in the metric system? Length (Meter "m"), Mass (Gram "g"), Volume (Liter "L")
What is a hematocrit centrifuge for? Designed to only hold microhematocrit tubes.
What is a clinical centrifuge for? Accomodates test tubes of many different sizes. There are 2 types, depending on the style of the head. Horizontal and Angled
What is the angle of specimen tubes in an angled centrifuge? Usually 52°
What are laser-based analyzers? Uses laser beams to determine the size and density of the cells, and evaluates the nuclear and cytoplasmic features of a cell.
What is the daily maintenance requirement for electronic cell counters? Flushing the entire system with cleaning solution & fresh diluting solution to keep the aperture open, wiped down, rebooting, intake fan cleaned out.
Incubators must be capable of sustaining a constant temperature of....? 37° C
What is accuracy? How closely results agree with the true value of the constituent.
What is precision? The magnitude of random errors and the reproducibility of measurements.
What is reliability? The ability of a method to be both accurate and precise.
What does OSHA mandate in laboratory practice safety policies? Safety equipment and supplies must be available.
Created by: PimaVT
 

 



Voices

Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!

"Know" box contains:
Time elapsed:
Retries:
restart all cards