Laboratory Procedures Sample Questions Flashcards
A gray and red Vacutainer tube contains:
a) Heparin
b) Silicone serum separation material
c) Thrombin
d) Silicone coating with no additive
b) Silicone serum separation material
This type of Vacutainer is also known as a Serum Separation Tube. Green Vacutainer tubes contain heparin. Yellow and gray Vacutainer tubes contain a silicone coating with no additive.
When performing venipuncture on a cat using the left femoral vein, the patient should be placed in:
a) Dorsal recumbency
b) Right lateral recumbency
c) Left lateral recumbency
d) Sternal recumbency
c) Left lateral recumbency
With the patient in this position, the restrainer can occlude the vein by pressing on the medial side of the upper thigh with one hand.
Arthrocentesis is the method used to collect:
a) Abdominal fluid
b) Cerebrospinal fluid
c) Synovial fluid
d) Thoracic fluid
c) Synovial fluid
Arthrocentesis is the method used to collect synovial fluid from joints to help examine joint problems such as lameness or arthritis.
A healthy feline should have a red blood cell count ranging from:
a) 5.0 - 8.5 x 10^6 mm^3
b) 5.5 - 9.5 x 10^6 mm^3
c) 5.5 - 10.0 x 10^6 mm^3
d) 7.0 - 13.0 x 10^6 mm^3
c) 5.5 - 10.0 x 10^6 mm^3
Choice a represents the red blood cell count of a dog. Choices c and d represent the red blood cell counts of an equine and thoroughbred, respectively.
A veterinarian collects a blood sample from a ferret to check the animal’s WBC count. This sample will provide information about the ferret’s:
a) White blood cells
b) Whole blood cells
c) White blood culture
d) Whole blood culture
a) White blood cells
Hemolysis is a form of cell disintegration in:
a) White blood cells
b) Red blood cells
c) Platelets
d) Plasma
b) Red blood cells
Hemolysis involves deterioration of red blood cells. During this process, red blood cells break and release their contents into the plasma or serum that has been extracted from the animal. Hemolysis is typically visible, as the fluids in the test tube are a dark red color rather than a pink color or clear. Although the breaking of the red blood cells influences the plasma, the effect is indirect.
A postprandial urine sample would be taken after a period of:
a) Activity
b) Rest
c) Eating
d) Fasting
c) Eating
This form of urine collection would produce a sample that would be reflective of the patient’s diet. A sample taken after a period of activity would have a low level of concentration. A sample taken after a period of rest would be highly concentrated. A sample taken after a period of fasting would be free of any dietary effects.
Prandial = refers to the eating of food
Which of the following technicians is violating laboratory safety procedures?
a) Bill uses small and medium sized containers instead of large containers to store chemicals in the laboratory
b) Joseph wears a protective coat, disposable gloves, and goggles while working with chemical agents
c) Amanda accidentally ingests a biological agent and seeks the aid of a senior lab technician
d) Tiffany breaks a beaker of toxic substances, cleans up the spill and the broken glass, and goes back to work
d) Tiffany breaks a beaker of toxic substances, cleans up the spill and broken glass, and goes back to work
Tiffany violated laboratory procedures when she went back to work without recording or reporting the incident. When spills occur in labs, no matter the substance spilled or where it took place, the incident should always be recorded. Small and medium sized containers in labs cut down on the occurrence of large spills. Joseph is fully prepared to deal with all chemical and biological agents. Amanda, unsure of what to do in her situation, turns to a superior for guidance, thus alerting the staff to the situation and seeking medical help.
The majority of clinical waste disposal containers are which color?
a) Purple
b) Blue
c) Green
d) Red
d) Red
Some laboratories and clinics may choose to color code their waste containers and some clinics use yellow containers for radiation waste. However, most clinics’ containers are red.
All of the following are common anticoagulants except:
a) Sodium citrate
b) Heparin
c) Zeolite
d) EDTA
c) Zeolite
Zeolite is an absorbent chemical used to help seal various bodily injuries and is considered a procoagulant, rather than an anticoagulant.
