Specimen preservation Flashcards

4707826144	most commonly used method of preservation	refrigeration	0
4707826554	does not interfere with chemical tests, prevents bacterial growth up to 24 hours, raises sp. gr. by hydrometer, precipitates amorphous phosphates and urates	refrigeration	1
4707826838	for culture transport	boric acid	2
4707827092	preserves glucose and sediments well, interferes with acid precipitation test for protein	thymol	3
4707828004	preserves protein and sediments well, keeps pH at about 6.0, does not interfere with routine UA except pH, may precipitate crystals when used in large amounts	boric acid	4
4707828116	BACTERIOSTATIC at 18 g/L; interferes with drug and hormone analysis	boric acid	5
4707828144	interferes with drug and hormone analysis	boric acid	6
4707829065	excellent SEDIMENT preservative that acts as a reducing agent	formalin	7
4707829528	interferes with chemical tests for glucose, blood, leukocyte esterase and copper reduction	formalin	8
4707829710	used to preserve cells and casts	formalin	9
4707829998	does not interfere with routine analysis, flots on surface of specimens and clings to pipets and testing materials	toluene	10
4707830041	prevents glycolysis	sodium fluoride	11
4707830182	inhibits reagent strip tests for glucose, blood and leukocytes	sodium fluoride	12
4707830527	good preservative for DRUG ANALYSIS	sodium fluoride	13
4707830884	causes odor change, does not interfere with routine tests, use 1 drop per ounce of specimen	phenol	14
4707831001	preserves cellular elements, for CYTOLOGY studies	Saccamano fixative	15
4707831834	at a pH of ____, 30 mL of 6N _____ can be used for catecholamines, VMA or 5-HIAA	1-2; HCl	16
4707832693	at a pH of ____, _____ is used for AMINO ACID ANALYSIS	3; HCl	17
4707833072	prevents bacterial growth and is useful as a glucose preservative	Clorhexidine	18
4707843456	preserves bacteria, stable at 48 hrs	Gray C & S tube	19
4707843561	used for automated instruments	yellow plain UA tube	20