PMOC 2 SANITATION Flashcards
Application to living tissue for preventing infection
Antisepsis
Chemical or physical treatment that destroys most vegetative microbes or viruses, but nut spores, in or on inanimate surfaces
Disinfection
Destruction or marked reduction in the number of activity
of microorganisms
Decontamination
Reduction of microbial load on an inanimate surface to a level considered acceptable for public health purposes
Sanitation
Kills nonsporulating microorganisms by hot water or steam at 65-100°C
Pasteurization
Kill or remove all types of microorganisms, including spores, and usually including viruses with an acceptably low probability of survival
Sterilization
introduced antiseptic principles and phenol
Joseph Lister
Paul Ehrlich introduced
Salvarsan/magic bullet/Compound 606
First treatment for syphillis
Salvarsan
Most successful anti-infective agents
Mercury, Arsenic, Antimony
sleeping sickness treatment
Atoxyl (Sodium Arsanilate and Arsphenamine)
Anti infectives classification
- Chemical types of the compound
- Biological properties
- Therapeutic indication
antibacterial potencies of the primary alcohols (against test cultures of Staphylococcus aureus) increase with molecular weight until the __-carbon atom octanol is reached
8
one oxygen atom is capable of solubilizing _______ atoms in water
seven or eight carbon
Astheprimaryalcoholchainlengthincreases,vanderWaals interactions increase, and the ability to penetrate microbial membranes _____.
increases
Aswatersolubilitydecreases,theapparentantimicrobial potency ____ with molecular weight.
diminishes
Branching of the alcohol chain _____ antibacterial potency; weaker van der Waals forces brought about by branching do not penetrate bacterial cell membranes as efficiently
decreases
Clear, colorless, volatile liquid
Ethyl alcohol
Burning taste, pleasant odor
Rectified spirit
Flammable, miscible with water in all proportions
Wine spirit
Soluble in most organic
solvents
Grain alcohol
Prepared by sulfuric-acid –
catalyzed hydration of ethylene
Spiritus vini rectificatus
It inhibits alcohol dehydrogenase
Fomepizole
It inhibit aldehyde dehydrogenase
Disulfiram
Approximately 95% ethanol by volume
and forms an azeotrope with water that distills at
78.2°C
Commercial Ethanol
Unfit for use in intoxicating beverages
Denatured Alcohol
With wood alcohol and benzene and is unsuitable for internal/external use
Completely denatured alcohol
Ethanol treated with one or more substances that is permitted for a specialized purpose
Specially denatured alcohol
NLT 99% w/w ethanol
Dehydrated alcohol
Prepared by azeotropic distillation of an ethanol-benzene mixture
Dehydated alcohol
Colorless, volatile liquid, slightly bitter taste and suitable substitute for ethanol but must not be
ingested
Isopropyl alcohol
Prepared by sulfuric-acid – catalyzed hydrationof propylene
Isopropyl alcohol
Colorless, flammable gas, liquefies at 12°C for temperature sensitive medical equipment
and heat-sensitive pharmaceuticals
Ethylene Oxide
Diffuses readily through porous materials, destroys all forms of microorganisms and forms explosive mixtures in air at 3-80% by volume
Ethylene oxide
37% w/v formaldehyde, with methanol added to retard polymerization
Formalin
Germicidal action – direct, nonspecific alkylation of nucleophilic functional groups (amino, hydroxyl, and sulfhydryl) in proteins and nucleic acids to form carbinol derivatives
Formaldehyde solution
Diluted sol’n for heat-sensitive equipment
Glutaraldehyde
2% Glutaraldehyde buffered at 7.5-8.0
Commercial Glutaraldehyde
Defined as the ratio of a dilution of a given test disinfectant to the dilution of phenol that is required to kill a strain of Salmonella typhi under carefully controlled time and temperature conditions
Phenol coefficient
Standard to which the activity of most germicidal substances is compared
Phenol
Phenol aka
Carbolic acid
Carboxide content
90% CO2 and 10% ethylene oxide
Phenol containing 10% water
Liquefied Phenol
+ camphor = liquid petrolatum – used as external antiseptic and anti-irritant
p – Chlorophenol
Nonirritating antiseptic with broad-spectrum antibacterial and antifungal activities
p – chloro – m – xylenol (Metasep)
Used topically for ringworm infections – tinea pedis, tinea cruris
p – chloro – m – xylenol (Metasep)
Simple aromatic alcohol
Phenol
Hexachloropheneother names
Gamophen, Surgicon, pHisoHex
Banned OTC – due to reports of neurotoxicity in bathed infants and burn patients cleansed with the agent
Hexachlorophene
Mixture of 3 isomeric methylphenols
Cresol
Yellow to brownish yellow liquid, unpleasant creosote odor
Cresol
Obtained from coal tar/petroleum by alkaline extraction into aqueous medium, acidification, and
fractional distillation
Cresol
Thymol aka
Isopropyl m-cresol
Extracted from oil of Thymus vulgaris
Slightly soluble in water, extremely soluble in
alcohols and organic solvents
Mild fungicidal properties, used in alcohol sol’n
and dusting powders for ringworm infections
Thymol
Obtained from clove oil
Eugenol
With local anesthetic and antiseptic activities in mouthwash
Eugenol
Crystallizes as white needles or as an amorphous powder, soluble in water and alcohol
Resorsinol
White crystalline substance with faint phenolic odor produces numbness to tongue
Hexylresorcinol
Effective against anaerobic bacteria and can be used in cleansing contaminated wounds
Oxidizing Agents