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What specimen from a TB patient would the acid fast stain be performed on?
Wiki User
∙ 12y ago
The specimen is taken from TB lesion
Wiki User
∙ 12y ago
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Why is the gram stain technique more valuable than the simple stain technique in the diagnostic laboratory Under what circumstances might the simple stain be preferable to the gram stain technique?
There are two types of stains, the simple stain and the differential stain. A simple stain colors all objects the same while a differential stain is used to spot differences in microorganisms. A gram stain is a differential stain, which is used to tell the difference in gram negative and gram positive bacteria. A simple stain would stain all the organisms the same and this difference would not be noted. You would be able to determine their shape, whether it is a cocci or bacillus (rod), but not the type. I'm not sure why the simple stain would be preferable unless you just wanted a quick answer as to the shape of the bacteria. In some cases, a wet prep can be made of a presumptive gram positive cocci to tell the difference between bacteria or yeast. Otherwise, I would say that the gram stain is the only way to go.
What color are bacterial endospores after a gram stain is performed?
Gram-staining does not stain the endospore due to the tough, resistant water-proof structure. It appears as an unstained area in a vegetative cell. Malachite green must be forced into the endospore with heat to stain it.
What is methylene blue use for when gram staining?
Methylene blue can be used to prepare slide for animal cells. For example, if you want to examine a piece of your cheek cell, you would take a piece of cotton wool and rub it on the inside of your cheek and the rub it on a microscope slide, the you add a little distilled water and then a drop of methylene blue. The final step you would take, is to cover the slide with a cover slip, then place it under the microscope.
What would happen if no heat fixing were done?
If no heat fixing was done to a slide with a specimen on it, it would be rinsed off with the gram staining procedure. Heat fixing the specimen does kill specimen but it also locks it in place.
What departmen twithin the laboratory would handle a FDP specimen?
Clinical chemistry
What would you use to hold a patient tongue down when a specimen is obtained for a throat culture?
Forceps
What stain would you select if asked to evaluate a patient's bone marrow smear for the presence of siderosomes?
new methylene blue
What would you see if you observe a specimen with a magnifying glass?
Obviously, an enlarged specimen.
How big would the specimen look?
the specimen is the objective the microscope and a parts of microscope
A sentence with specimen?
A sentence with the word specimen in it would be, I went to the lab today to pick up that specimen I dropped off to be studied last week.
If applying a green stain over a red stain what colour would I get?
You would get the color grey
What would happen if no fixing were done?
If no heat fixing was done to a slide with a specimen on it, it would be rinsed off with the gram staining procedure. Heat fixing the specimen does kill specimen but it also locks it in place.
What kind of stain would you use to visualize Sars?
Negative stain
What is the worst stain?
The worst stain to get rid of would usually be blood.
What is the opposite of stain?
The lack of a stain would be spotlessness (state of being unstained).The opposite of wood stain is paint.
What kind of specimen is most frequently collected urine from the patient?
He or she begins urinating, letting the first portion pass into the toilet, then collecting the remainder into a sterile container.
How do you divide the word specimen into syllables?
Sound out the word and the pauses are syllables. So specimen would be spec-i-men.
