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KOH prep
A potassium hydroxide (koh) prep is made by sliding some material from the skin, vaginal tract, oral cavity, or some part of the body to see if the cause of the problem is due to fungus (or yeast). Example: candidiasis is a fungal infection of the vagina or oral cavity, often due to side effect of antibiotic therapy, when bacteria die and overgrowth of fungi occurs. Or skin (like athlete's foot).
Dr. Peter Kurzweil reviewed this
52 year experience in Internal Medicine
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A 28-year old male asked:
What is the definition or description of: KOH prep?
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A 36-year old asked:
What is the result of KOH prep of oral scraping in thrush?
1 doctor answer • 1 doctor weighed in
A 39-year old asked:
What is KOH test for eyes?
2 doctor answers • 5 doctors weighed in
A 30-year old male asked:
Derm did KOH test for fungus but didnt see any, then I told him I shaved with a razor less than an hour before and hd confirmed that DOES interfere with results by removing top layer of skin. Is a biopsy another way of detecting fungus?
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A 26-year old male asked:
Will applying antifungal cream to a suspected fungal infection the night before getting a KOH Test affect results?
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A 32-year old female asked:
I was lightly scratched by some monkeys jumping up my legs on koh phi phi thailand last week. Did not break the skin. Should I get a rabies shot?
1 doctor answer • 1 doctor weighed in
A 30-year old male asked:
Dermatologist did scrape test (KOH test) on assumed ringworm but didnt see fungus. However I had just shaved with a manual razor over the ringworm spot less than an hour before. Could this have affected the test by removing the top layer of skin?
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A 30-year old male asked:
Doctor did KOH scrape on potential fungal rash, it didnt detect fungus so now he feels it may be something else but I forgot to mention I shaved with a manual razor over the spot that morning barely an hour beforehand. Would that affect the results?
1 doctor answer • 1 doctor weighed in
A 43-year old female asked:
Can you have a yeast infection only in your vulvar? Inside has no discharge or irritation. KoH and gram stain show no yeast but culture came back few yeast. Is this a normal finding? Outside vagina is irritated, but inside looks normal?
1 doctor answer • 1 doctor weighed in
A 36-year old female asked:
Podiatrist wants to repeat KOH test as its negative for toenail fungus & thinks toenail looks like it has fungus despite that I said it looks like that due to nail trauma. The subungual hematoma improved in a year by itself. Should I do as he says?
1 doctor answer • 2 doctors weighed in
A 52-year old female asked:
What should I do if the prep laxitive doesn't work?
1 doctor answer • 1 doctor weighed in
A 34-year old asked:
Can colonoscopy prep make you sick?
1 doctor answer • 1 doctor weighed in
A 33-year old asked:
Is generlac used as a prep for colonoscopy?
1 doctor answer • 2 doctors weighed in
A 42-year old asked:
Colonoscopy prep clear return? Brown return?
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A 45-year old male asked:
Can I eat clear gummy bears during colonoscopy prep?
1 doctor answer • 1 doctor weighed in
A 43-year old asked:
Any tips when i'm prepping for my colonoscopy surgery?
3 doctor answers • 5 doctors weighed in
A 32-year old asked:
Can anyone suggest help with a colonoscopy prep gagging?
2 doctor answers • 3 doctors weighed in
A 37-year old asked:
Is it possible for you to eat yogurt during a colonoscopy prep?
1 doctor answer • 1 doctor weighed in
A 32-year old asked:
What prep is necessary for your skin before you go in for surgery?
1 doctor answer • 1 doctor weighed in
A 23-year old female asked:
Do I need to drink all of the prep for a colonoscopy? It makes me sick
2 doctor answers • 8 doctors weighed in
A 19-year old female asked:
Can I eat candy corn during my prep for a colonoscopy tomorrow at 5:45AM?
1 doctor answer • 2 doctors weighed in
A 31-year old asked:
I can't take any more of my colonoscopy prep medicine! what do you recommend?
1 doctor answer • 1 doctor weighed in
A 41-year old asked:
What universal precautions would you take when you prep an injection for yourself?
1 doctor answer • 2 doctors weighed in
A 48-year old female asked:
I am on my 1 st day of prepping for a colonoscopy. I am getting a nasty headache. Help?
1 doctor answer • 1 doctor weighed in
A 19-year old female asked:
How do I prep for a hida scan? And could pain pills affect the scan even.If its 5 days away
3 doctor answers • 10 doctors weighed in
A 50-year old female asked:
Used a prep H suppository. Now feel jittery. How long does it take to get out of my system?
1 doctor answer • 1 doctor weighed in
A member asked:
I read the dosage wrong on the colonoscopy prep. I drank 4 doses in less than 10 mins. Will i be alright?
1 doctor answer • 2 doctors weighed in
A 48-year old female asked:
I understand finishing a colon prep. But why is it always at night? Can't it be finished the day before?
1 doctor answer • 1 doctor weighed in
A 21-year old female asked:
If it says " wet prep " on gyno summary of procedures done does that mean they tested for trich? Or looked for trich ?
1 doctor answer • 1 doctor weighed in
A 28-year old female asked:
Hi, Id like to start taking PrEP. Whats the process to get on the PrEP program? And what are the side effects of the medication?
1 doctor answer • 1 doctor weighed in
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