Chapter 42: Specimen Collection and Processing
Ideally, testing of collection should be performed within what time frame to prevent decomposition of the specimen due to bacterial overgrowth and cellular breakdown?
One hour
Which of the following is defined as the weight of substances dissolved in a specimen as compared with those found in distilled water?
Specific gravity
Specimens indicated for diagnostic analysis when a patient has an unresolved cough with mucus production?
Sputum
Tests performed by swabbing a sample of the exudate (drainage) from the throat, mouth, ear, eye, nose, vagina, anus, or infected wounds
Cultures
Which type of agar is used for the colony count for urine specimens, and the plate is streaked in a distinctive fashion?
Blood
The normal value range for specific gravity is
1.005–1.030
the shape of cocci organisms
round
What color does the guaiac reagent turn when oxidized in the presence of blood?
Blue
Exudate is another word for
Drainage
Diagnostic test for microbiological testing
Rapid strep A
Through partial voiding before collection, which part of the body is cleared of contaminants such as bacteria, mucus, cells, or other debris that could adversely affect the results?
Uretha
Which of the following urine samples is the best for testing because the urine, having been in the bladder overnight, is the most concentrated specimen?
the first morning urine
Which is a specialized type of urine collection that is indicated when the patient is unable to void?
Cathreization
Which of the following is the normal pH for urine?
5.0 to 7.0