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level: Level 3 (ALDEHYDES) SLIDE 28

Questions and Answers List

Question	Answer
Colorless aqueous solution that officially contain not less than 37% w/v of formaldehyde (HCHO), with methanol added to retard polymerization Miscible with water and alcohol Pungent aroma Oxidized to formic acid and paraformaldehyde. Carcinogenic	FORMALDEHYDE SOLUTION
1 Formaldehyde other names 2 Formaldehyde is oxidized to __	1 Formalin 2 Formic acid and paraformaldehyde.
1 Formaldehyde Mode of Action 2 Formaldehyde storage	1 Direct, nonspecific alkylation of nucleophilic functional groups (amino, hydroxyl, sulfhydryl) in proteins and nucleic acids to form carbinol derivatives. 2 Tightly closed containers, light resistant Stored at temperature above 15˚C to prevent cloudiness, develops at lower temps.
1 Formaldehyde Irritating to mucous membranes and causes __ 2 Oral ingestion of Formaldehyde: __ 3 Formalin can cause __	1 hardening of the skin 2 severe gastrointestinal distress. 3 Contact dermatitis
Used as dilute solution for sterilization of equipment and instruments that cannot be autoclaved.	GLUTARALDEHYDE/ GLUTAROL
1 Glutaraldehyde 2 components: 2 Glutaraldehyde brand name	1 glutaraldehyde (2%), buffer (pH 7.5 to 8) 2 Cidex
1 Stabilized glutaraldehyde solution retain __ of original activity 30 days after preparation 2 Non stabilized glutaraldehyde lose __ activity after 15 days 3 Glutaraldehyde of High pH rapidly __ 4 Glutaraldehyde nonbuffered solution Is acidic, stable but lack __	1 greater than 80% 2 44% 3 polymerizes. 4 sporicidal activity