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Laboratory Testing

Before a doctor can diagnose a patient, laboratory tests such as blood work are required.

8,512 Questions

Why you cannot use yellow top tube for blood culture?

Yellow top tubes are not recommended for blood culture collection as they contain gel separators which can interfere with the growth of microorganisms in the blood sample. This can lead to potential false negative results. It is important to use blood culture bottles with specific media and no gel separators to ensure accurate results.

What color tube is used for PTH test?

A lavender or purple top tube is typically used for a parathyroid hormone (PTH) test.

What are 3 common acids that might be found in the lab?

Three common acids found in the lab are hydrochloric acid (HCl), sulfuric acid (H2SO4), and nitric acid (HNO3). These acids are frequently used in various laboratory procedures, such as pH adjustment, chemical synthesis, and titrations.

What color tube is used for lupus test?

The most common tube color used for lupus testing is a red-top tube, which contains no anticoagulant. This allows for the blood to clot before testing. Additionally, a lavender-top tube containing EDTA anticoagulant may also be used for specific lupus tests.

What color tube is used to draw cpk test?

A lavender or purple top tube is typically used to collect a CPK (Creatine Phosphokinase) blood test.

Is a reading of 73 for ALT dangerous in a blood test?

An ALT level of 73 is considered slightly elevated, but not typically considered dangerous on its own. However, it is important to consult with a healthcare provider to determine the underlying cause and appropriate management, as elevated ALT levels can indicate liver damage or disease.

What color tube is used to test alcohol levels?

A grey top tube, also known as a fluoride oxalate tube, is typically used to test alcohol levels in blood samples. This tube contains a preservative that prevents the breakdown of alcohol in the sample.

How do you improve RDW?

To improve RDW (Red Cell Distribution Width), focus on addressing the underlying cause, which may include nutritional deficiencies, chronic illnesses, or blood disorders. Ensure a balanced diet rich in iron, folate, and vitamin B12, manage any existing health conditions, and consult a healthcare provider for further evaluation and treatment if necessary. Regular monitoring of RDW levels can help track progress and ensure optimum health.

If your mom has A blood type and your dad has A blood type what are the possible blood types for you?

We are looking for the possible blood types of a baby.

Parental information:

  • Mother type A -- can be AA or AO - contributes A or O gene
  • Father type A -- can be AA or AO - contributes A or O gene
Baby receives one gene from each parent:
  • Baby is type AA = Type A
  • Baby is type AO = Type A
  • Baby is type OO = Type O
Generally when the parents are both Type A, the baby will also be Type A, but there is a chance that the baby may be Type O, if the parents are heterozygous for Type A (AO).

Why would BUN be high?

A high blood urea nitrogen (BUN) level can indicate kidney dysfunction, dehydration, excessive protein intake, or certain medications like corticosteroids. Kidney disease, heart failure, and gastrointestinal bleeding can also lead to high BUN levels.

What is RCW on a blood test result?

RCW is not a common abbreviation or acronym used in blood test results. It is possible that it may refer to a specific test or parameter that is not widely recognized. It would be best to consult with your healthcare provider or the laboratory that conducted the test for clarification.

What does MO percent in blood test mean?

MO percent in a blood test likely refers to monocytes, which are a type of white blood cell. Monocytes play a role in helping the body fight infections and inflammation. The percentage of monocytes in a blood test can provide information about the body's immune response.

What color of tube is used for viral load?

A lavender-top tube is commonly used for viral load testing.

What color of tube is used for ferritin?

The color of tube used for ferritin is typically gold or red/gray.

What color tube is used for urea?

A tiger or gold top tube is typically used for urea testing. It usually contains a clot activator and gel separator that helps in separating serum from the blood cells after centrifugation.

What color tube is used to draw HgA1c?

For a HgA1c you would need a lavender top tube.

What color tube is used for lipase?

A green or mint-colored tube is typically used for lipase testing.

Should you fast before a chem 7 blood test?

It is generally recommended to fast for around 8-12 hours before a Chem 7 blood test to ensure accurate results, unless your healthcare provider advises otherwise. However, always follow the specific fasting instructions given to you by your healthcare provider.

What color is the tube top for cardiac enzyme test?

The color of the tube top for a cardiac enzyme test is typically red or gold. These colors indicate that the tube contains a gel separator and clot activator to help with blood separation and clotting.

What happens if your RDW is 15.2?

A RDW (red cell distribution width) of 15.2 is slightly elevated, which could indicate variability in the size of your red blood cells. This may be seen in certain conditions like anemia, nutrient deficiencies, or inflammation. Further evaluation by a healthcare provider is recommended to determine the underlying cause.

What kind of antibiotic will make you test positive for cocaine?

No known antibiotic tests positive for cocaine, at least in the US.

What color tube top for PTT?

Pink could be a great choice for a PTT (Pectoralis major trigger point) examination to create a contrast against the skin and help highlight any tender areas or trigger points.

Why EDTA tube prevents clotting?

EDTA acts as a chelating agent, binding to calcium ions in the blood which are necessary for the clotting process. By removing calcium, EDTA prevents the activation of coagulation factors and thus inhibits blood clot formation in the tube.

What color tube to use for Lipase tests?

A red-top tube is typically used for Lipase tests, which measure the levels of lipase enzyme in the blood. It is important to follow specific instructions provided by the laboratory or healthcare provider for proper sample collection.

What is Serum urea normal range?

The normal range for serum urea is typically between 7-20 mg/dL (2.5-7.1 mmol/L). However, this range can vary depending on the laboratory and individual factors such as age and health status. It is important to interpret the results in the context of the specific clinical situation.