what is the mixture of specimen and saline called?


What is a mixture of specimen and saline called?

What is the mixture of specimen and saline called? Suspension. What is mucus that forms in the bronchial tubes during a respiratory infection?

What are cultures and smears?

Cultures and smears. Are samples of microorganisms and tissue cells that are taken from the body for testing. After they are examined under a microscope by certified health care workers, cultures and smears can be used to determine the cause of a disease.

What tool is usually used to perform a throat or wound culture?

A throat culture or strep test is performed by using a throat swab to detect the presence of group A streptococcus bacteria, the most common cause of strep throat.

Which of the following is true the label for a specimen should be placed on the lid of the specimen container?

The label for a specimen should be placed on the lid of the specimen container. A specimen container does not need a label if a lab request form is attached. Touching the inside of the specimen container lid will not affect the test results. Use a sterile container for each specimen.

What is smear microbiology?

A bacterial smear is simply that—a small amount of culture spread in a very thin film on the surface of the slide. To prevent the bacteria from washing away during the staining steps, the smear may be chemically or physically “fixed” to the surface of the slide.

What is a culture specimen?

A bacteria culture test can help find harmful bacteria in your body. During a bacteria culture test, a sample will be taken from your blood, urine, skin, or other part of your body. The type of sample depends on the location of the suspected infection.

What is mucus that forms in the bronchial tubes during a respiratory infection?

Sputum is produced when a person’s lungs are diseased or damaged. Sputum is not saliva but the thick mucus – sometimes called phlegm – which is coughed up from the lungs.

How do you collect AFB culture?

To do an AFB culture, healthcare providers take a sample of phlegm or sputum you’re coughing up or a tiny bit of your tissue. They “culture” it by putting it in a special container with food the bacteria needs to grow. They then check it over a few weeks’ time to see whether the bacteria grow.

Why is it necessary to culture a specimen?

Culture remains the gold standard for laboratory confirmation of TB disease, and growing bacteria are required to perform drug-susceptibility testing and genotyping. In accordance with current recommendations, sufficient numbers and portions of specimens should always be reserved for culture.

What cultured bacteria?

A microbiological culture, or microbial culture, is a method of multiplying microbial organisms by letting them reproduce in predetermined culture medium under controlled laboratory conditions. … Microbial cultures are used to determine the type of organism, its abundance in the sample being tested, or both.

What is pus culture test?

The test is done on a sample of pus to identify the presence of the pathogenic organism in the pus. A culture of a sample is done to find germs (bacteria or fungus) present in it.

How do you perform a throat swab?

Step-by-Step Description of Procedure

Have the patient open the mouth and relax the tongue by saying “aaaah.” Press the tongue down using a tongue depressor. Gently rub the swab against both tonsils and the posterior pharynx. Place the swab in the culture medium, transport medium, or sterile test tube.

What is specimen label?

A means of uniquely identifying the source of a clinical specimen sent for laboratory analysis.

When should a specimen be labeled and why?


Specimens need to be properly labeled at the time of collection by using patient identification before administering the patient’s test, and also when applying the label to the specimen. Patients must be present when the medication container is being labeled to ensure it is the correct patient and correct test.

How do you label a urine specimen?

The label must contain the following legible information:
  1. Patient name.
  2. Patient medical record number, with check digit.
  3. Patient location.
  4. Collection date and time.
  5. Specimen type and/or source.
  6. Test required (note any special handling required)
  7. Ordering physician.

What is the difference between stain and smear?

Because bacteria are, for the most part, transparent, we use stains to give them color for microscopic observation. Making a bacterial smear prepares the bacteria to be stained and a simple stain is a quick and easy way to observe bacteria.

What are chromophores quizlet?

Chromophores are charged groups which can be either cationic or anionic. Examples of basic stains and acidic stains that contain chromophores are crystal violet and eosin. … Basic dyes are used for the staining of bacterial cells and acidic dyes (eosin) do not stain them.

What is slide preparation?

Slide preparation begins with the fixation of your tissue specimen. This is a crucial step in tissue preparation, and its purpose is to prevent tissue autolysis and putrefaction. For best results, your biological tissue samples should be transferred into fixative immediately after collection.

What is specimen in microbiology?

Specimen collection requires withdrawing blood, cerebrospinal fluid, collecting urine, or swabs from mucosal surfaces. Specimen collection is performed using aseptic techniques to ensure sterility of the sample and avoid contamination from bacteria or other bodily fluids.

What are the different types of specimen?

Syntype – when a species is first described the author may choose several specimens as being representative of the species rather than pick a single holotype. Each specimen is known as a syntype.

Other names for (or types of) Type specimen include:
  • Holotype.
  • Lectotype.
  • Neotype.
  • Onomatophore.
  • Paratype.
  • Plesiotype.
  • Syntype.
  • Type.

Can a specimen be transported in a fixative?

All specimens should be transported in the relevant fixative. All specimen pots should be tightly sealed and transported using specimen bags, where appropriate. The request card should be placed in the pocket of the specimen bag, and the pot inside the sealed bag to ensure the safety of all staff.

What is the difference between mucus and phlegm?

Mucus and phlegm are similar, yet different: Mucus is a thinner secretion from your nose and sinuses. Phlegm is thicker and is made by your throat and lungs.

What does pink phlegm mean?

Red or pink phlegm can be a more serious warning sign. Red or pink indicates that there is bleeding in the respiratory tract or lungs. Heavy coughing can cause bleeding by breaking the blood vessels in the lungs, leading to red phlegm.

What is the fastest way to get mucus out of your lungs?

Home remedies for mucus in the chest
  1. Warm fluids. Hot beverages can provide immediate and sustained relief from a mucus buildup in the chest. …
  2. Steam. Keeping the air moist can loosen mucus and reduce congestion and coughing. …
  3. Saltwater. …
  4. Honey. …
  5. Foods and herbs. …
  6. Essential oils. …
  7. Elevate the head. …
  8. N-acetylcysteine (NAC)

What AFB means?

Acid-fast bacillus (AFB) is a type of bacteria that causes tuberculosis and certain other infections. Tuberculosis, commonly known as TB, is a serious bacterial infection that mainly affects the lungs. It can also affect other parts of the body, including the brain, spine, and kidneys.

What causes TB?

Tuberculosis (TB) is caused by a bacterium called Mycobacterium tuberculosis. The bacteria usually attack the lungs, but TB bacteria can attack any part of the body such as the kidney, spine, and brain. Not everyone infected with TB bacteria becomes sick.

Is Cbnaat and Genexpert same?

Introduction: Gene-Xpert, a CBNAAT (catridge based nucleic acid amplification test) is a widely accepted diagnostic test for Tuberculosis. This test is a rapid diagnostic test for Tuberculosis detection as well as Rifampicin resistance in direct smear negative cases.

What labs show infection?

A blood culture test helps your doctor figure out if you have a kind of infection that is in your bloodstream and can affect your entire body. Doctors call this a systemic infection. The test checks a sample of your blood for bacteria or yeast that might be causing the infection.

How is infection diagnosed?

Doctors diagnose infectious diseases using a variety of laboratory tests. Samples of blood, urine, stool, mucus or other body fluids are examined and provide information used in the diagnostic process. In some cases, doctors identify infectious organisms by examining them under a microscope.

Do viruses show up in blood tests?

Bacteria, viruses and fungi can show up in body fluids, such as blood, urine (wee), faeces (poo), sputum (spit), cerebrospinal fluid (CSF) bone marrow and skin cells.

What is the difference between selective and differential media?

Selective media generally selects for the growth of a desired organism, stopping the growth of or altogether killing non-desired organisms. Differential media takes advantage of biochemical properties of target organisms, often leading to a visible change when growth of target organisms are present.

What is culture testing?

A culture is a test to find germs (such as bacteria or a fungus) that can cause an infection. A sensitivity test checks to see what kind of medicine, such as an antibiotic, will work best to treat the illness or infection.

What is a differential media?

Differential media contain compounds that allow groups of microorganisms to be visually distinguished by the appearance of the colony or the surrounding media, usually on the basis of some biochemical difference between the two groups.

What are the 4 types of wound drainage?

There are four types of wound drainage: serous, sanguineous, serosanguinous, and purulent. Serous drainage is clear, thin, and watery. The production of serous drainage is a typical response from the body during the normal inflammatory healing stage.

Centrifugation and Aliquoting of Blood Serum and Plasma


Lecture 20: Specimen Collection & Processing II

Specimen Quality

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