Hand Hygiene/Moisturizers/Sunscreens Flashcards
4 variables of percutaneous pharmacokinetics?
- Regional
- Concentration gradient
- Dosing schedule
- Vehicles/occlusion
4 variables of percutaneous pharmacokinetics?
- Regional
- Concentration gradient
- Dosing schedule
- Vehicles/occlusion
What is a cream?
50% water and 50% oil with an emulsifier
50% water and 50% oil with emulsifier
Cream
Attributes of a cream?
- Can spread easily and is well absorbed
- Can be washed off with water
Creams are better for what type of skin conditions?
Oozing/wet skin conditions
What is an ointment?
20% water and 80% oil
20% water and 80% oil
Ointment
Attributes of an ointment?
- Greasy and NOT well absorbed
- Stays on the skin surface
Ointments are better for what type of skin conditions?
Dry skin to trap in moisture
Between a cream and an ointment, which is LESS likely to cause an allergic reaction?
Ointment
Purpose of hand hygiene?
Decrease transmission of microorganisms to other areas of body or to other patients
5 times when you should perform hand hygiene
- Before touching a patient
- Before a procedure
- After touching a patient
- After touching a patient’s surroundings
- After bodily fluid exposure
Proper hand washing conditions?
15-30 seconds with plain soap
What is a faster, easier, and more effective measure than washing hands?
Alcohol antiseptic
Alcohol antiseptic kills everything EXCEPT?
C. Difficile
How must you get rid of C. Difficile?
Wash with soap and water
3 moisturizer components?
- Emollients
- Humectants
- Horny substance softeners
What are Emollients?
- Moisturizer component
= Oily layer that traps water in skin
Oily layer of a moisturizer that traps water in the skin
Emollient
Examples of Emollients? (4)
Petrolatum
Lanolin
Dimethicone
Mineral oil
Petrolatum, Lanolin, Dimethicone and Mineral oil are all?
Emollients
- oily layer that traps water in skin
What are Humectants?
- Moisturizer component
= Draws water into outer layer of skin
Draws water into outer layer of skin
Humectants
Examples of Humectants? (3)
Glycerin
Lecithin
Propylene glycol
Glycerin, Lecithin and Propylene glycol are all?
Humectants
- draws water into outer layer of skin
What are Horny substance softeners?
Helps dead skin fall off and gives it smoother feeling
Helps dead skin fall off and gives it smoother feeling
Horny substance softeners
Examples of Horny substance softeners? (4)
Alpha hydroxyacids
Salicylic acid
Urea
Allantoin
Alpha hydroxyacids, Salicylic acid, Urea and Allantoin are all?
Horny substance softeners
- helps dead skin fall off and gives it smoother feeling
UVA radiation causes?
Skin aging and cancer
UVB radiation causes?
Sunburn, skin aging and photocarcinogenesis
What are sunscreens?
Chemical compounds that absorb UV light
3 types of sunscreens?
PABA
Benzophenones
Dibenzoylmethanes
What sunscreen is active in the UVB range?
PABA
Adverse effect of PABA?
Hypersensitivity reactions
What sunscreen has a wide radiation wavelength range?
Benzophenones
Benzophenones have?
Wide radiation wavelength range
What sunscreen is active in the UVA range?
Dibenzoylmethanes
In what condition are Dibenzoylmethanes useful?
Drug-induced photosensitivity
What are sunshades?
Opaque materials that reflect light
Main sunshade material?
Titanium Dioxide
What is Titanium Dioxide?
Sunshade - material that reflects light
SPF
Ratio of minimal erythema dose WITH sunscreen to minimal erythema dose WITHOUT sunscreen
What is a broad-spectrum, anti-microbial agent used to clean homes and hospitals?
Chlorhexidine
What is Chlorhexidine used for?
To clean homes and hospitals
Why is Chlorhexidine so great?
Safe, low irritability, general efficacy on skin and oral mucuosa
What are the hardest organisms to kill?
Prions
Protozoa
Spores
Biofilms offer?
Antibiotic resistance
How do Biofilms offer antibiotic resistance?
Limited penetration and antibiotic neutralization