Laboratory Procedures Flashcards
When are lab requisitions required?
When sending specimens to be tested at an outside laboratory
What happens when a requisition is not accurately completed?
Can result in rejected specimen, dissatisfied patient and can cause delay in treatments
Incorrect specimen labeling contributes to?
laboratory error
What should specimen containers labels include?
Name, date of birth, date and time of collection, medical assistant’s initials
What should the specimen containers labels be compared against before sending to the lab?
The patient’s health record and lab order
Who collects specimens that are sent to outside reference laboratories for testing in an ambulatory medical laboratory?
Medical Assistant
Who staffs clinical laboratories?
Certified Medical Technologists (MTs), Certified medical laboratory technicians, (MLTs), Medical laboratory assistants (MLAs), Certified Clinical medical assistants (CCMAs), phlebotomists.
What part of the container should not be labeled and why?
Lid, it could be mistakenly be put on another specimen container
What parts are included in a laboratory requisition form?
patient demographic information, providers signature or authentication, The specific test ordered, the source of the specimen, date and time of specimen collection and diagnosis code related to the medical necessity of the test ordered
Urinalysis
Includes the physical, chemical, and microscopic examination of urine
Hematology department
Blood cell counts that determine RBCs, WBCs, and platelets of a blood specimen
Chemistry
chemicals found in blood, cerebrospinal fluid, urine, joint fluid, lipid profiles (such as triglycerides, total cholesterol, HDL, and LDL), and fasting glucose
Cytology
Microscope examination of cells for diagnostic purposes
Blood bank
processes and stores blood and blood products for transfusion and blood disorder treatments.
Hematology
study of cause, prognosis, treatment, and prevention of diseases related to blood.
Microbiology
Study of all living organisms that are too small to be visible by the naked eye.
Microbiology department
Studying bacteria, fungi, parasites, yeasts, and viruses; specimens can include urine, blood, sputum, cerebrospinal fluid, stool, and wound material.
Some urine screenings require documentation of ____
urine temperature at the time of specimen collection.
Some blood test require confirmation of ____
fasting
Demographic accuracy on the requisition form is important for ____ and ___.
billing purposes and patient identification
Nine things included in demographic information:
- Patient name
- Address
- Date of birth
4.Sex
5.Telephone number
6.Insurance information - Provider information
- Diagnosis code or indications for testing
- Order date
hCG
Human chorionic gonadotropin- hormone secreted by the placenta during pregnancy
Pregnancy testing
Urine and blood is screened for Human
Rapid streptococcus Testing
Throat swabs are collected from the posterior of the throat/ tonsils and screened for the antigen, group A Streptococcus
Dipstick, tablet, or multi-stick urinalysis
screening tools for analytes that are excreted in the urine.
A urine sample is performed and tested with a____.
Reagent strip.
Analytes
A substance or chemical that is being identified or measured
hemoglobin testing
A machine is used to screen for oxygen-carrying protein in whole blood, performed using capillary blood from a fingerstick (capillary puncture).
Spun Hematocrit
Fingerstick (capillary puncture) collection of blood is obtained in microcapillary tubes, which are centrifuged and evaluated for the percentage of red blood cells.
What are the components of blood separated by centrifuge
1.Plasma
2.buffy coat
3. RBC
4.Sealing compound
Blood Glucose
Whole blood is analyzed in a glucometer for a quantitative glucose level and is a screening test for diabetes, performed using capillary blood from a fingerstick.
