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misc. organisms
Question | Answer |
---|---|
Which type of urine sample is required for a urine culture? | clean catch- midstream-sterile container. Refrigerate until plated |
What does each of the following urine culture results mean? a. less than 10,000 CFU/ml b. 10,000-100,000 CFU/mL c.greater than 100,000 CFU/mL d. many species | a. contamination- NF b. possible infection c. infection/ UTI d. appears to be contaminated/ repeat culture if clinically indicated |
What does AFB stand for? | AFB= Acid Fast Bacilli |
What does Mycobacterium tuberculosis cause? | an example of AFB- causes TB |
How is Mycobacterium tuberculosis transmitted? | droplet nuclei |
what are characteristics of spirochetes? | a. spiral b. move by spinning/ turning corkskrew c.stain poorly or not at all with Gram d. does not grow outside the body |
What does Treponema pallidum cause? | Syphilis |
What are two ways to test for syphilis? | a. antibodies against it b. exudate from lesion/ dark field microscopy |
what is the first clinical sigh on syphilis? | chancre- Ulcer |
what does Borreila burgdorferi cause and how is the disease transmitted? | Lyme disease, deer and rodent tick |
What is mycology? | study of fungi |
What is ringworm or tinea? | superficial fungal infection of skin, hair or nails |
How are superficial funfal infections checked for? | KOH potassium hydroxide lactophend blue |
What can Candida albicans cause? | a. Thrush b. vaginitis |
What are parasites? | must live on other living matter. eukaryotic |
What is an O & P test? | Ova and parasite in stool |
How do you perform a cellulose tape collection for Enterobius vermicularis? | causes pinworm - eggs picked up from skin of parianal region with scotch tape |