Calibration And Quality Control Flashcards
(21 cards)
Define calibration
Establishes an initial point of measurement or data point. Think of scale that is zeroed. Think of refractometer who specific gravity is adjusted with the screw to read 0 when distilled water is used
What are calibration and quality control needed for
Together ensure the accuracy of results. Complement each other and both are necessary
Why is quality control necessary
It checks that the calibration is correct. This is the exam for the equipment.
How can you test a scale to make sure this reliably weighing your patient
Use a standard to verify, weight or concentration
What do calibration and quality control together determine
The accuracy of the method. Accuracy and precision equals reliability
What can you say if you analyze a sample And get the correct result
The instrument does demonstrates good accuracy
What can you say about an instrument if you repeat the same analysis on the same sample a few times and get results with little variation
It has good precision
When does something have good accuracy and good precision
Correct results and acceptable variation. The only good option
When can something have poor accuracy And good precision
Incorrect results but An acceptable degree of variation
When can something have good accuracy but poor precision
Correct results but unacceptable degree of variation
When does something have poor accuracy and poor precision
Incorrect results with unacceptable degree of variation
What are errors in scale measurements due to
Displacing, tare, surface, location on scale, care and maintenance
What is an otoscope used for
Observation of ear structures
What are the components of the otoscope
Handle, head, bulb, speculum
What is the ophthalmoscope used for
Observation of eye structures. Dilation of pupils.
What are the components of the ophthalmoscope
Handle, head, bulb
What is the woods lamp used for
Dermatological conditions, ocular conditions, ethylene glycol poisoning in humans
What are the two types of tattoo devices for small animals
Clamp or tattoo gun
What do microchips do
They use RFID technology it goes under the skin in dogs and cats. Intramuscular in avians. Ear tags in farm animals.
Describe the schiotz tonometer for measuring intraocular pressure
Use weight and gravity. Must be used vertically. Requires local anesthetic
Describe the tonopen
Weight measured to produce a specific amount of flattening the cornea. Can be used in any position. Requires local anesthetic. much less contact surface then Schiotz.
