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Laboratory Testing

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

8,512 Questions

What is stenazoline?

Stenazoline is a nasal decongestant spray that works by constricting blood vessels in the nasal passages, reducing congestion and swelling. It is used to relieve symptoms of a stuffy or blocked nose due to conditions like allergies, hay fever, or the common cold. It should be used for short-term relief and not for prolonged periods to avoid rebound congestion.

How much blood in ml equals 1 gram?

The density of blood is approximately 1.06 grams per milliliter. Therefore, 1 gram of blood is roughly equal to 0.9434 milliliters. This calculation is based on the density of blood, which can vary slightly depending on factors such as hematocrit levels and other components in the blood.

How many nanoliters in one liter?

1 nanoliter equals 1/1000000000 of a liter
A litre is equal to 1 000 000 000 nanolitres.

The prefix nano means 10-9. 1 nanolitre is 1/109 litres.

Correct order of draw for coagulation studies?

Order of draw for a phelobotomist is the following (tubes that collect specimens in a phelobotomist case is blood specimen the most common one used are lavender for blood counts and red for serology pregnancy test and STD's and SST tubes which are seum separator tubes that go to chemistry there's only a few SST and the other tubes contain Plasma some examples, are the lavender the light blue gray for toxicology and etc etc. Theres about 14 common tubes that are identified with their top colors 4 of them are SST that contain serum and 10 are plasma (these are chemicals that are in the tube to preserve the blood specimen) to aid on the testing . There are many department to which these tubes are send to but with the proper training and practice these Order of Draw get easier The test are many hundreds and the deparment are quite a few As long as you recognize these that are the most common ones you be on your way to be a very sucesfull phlrbotomist like me Im eaven surprise of the information that I provided here Hopefully It will help someone. Phelobotomist student.

You smoke weed every day can you pass a drug test?

If you smoke weed every day, it's unlikely that you would pass a drug test, especially if it's a urine test. THC, the active ingredient in marijuana, can stay in your system for weeks or even longer, depending on factors like frequency of use and metabolism. It's best to abstain from using marijuana if you know you have a drug test coming up.

How much does an xray of the elbow cost?

The cost of an X-ray of the elbow can vary depending on the healthcare provider, insurance coverage, and location. On average, it can range from $100 to $1,000 or more without insurance. It's best to check with your healthcare provider or insurance company for specific pricing information.

What causes pro-time levels to be too low?

Low prothrombin time (pro-time) levels can be caused by conditions such as liver disease, vitamin K deficiency, or use of certain medications like anticoagulants. It can also be due to clotting factor deficiencies or abnormalities in the intrinsic or extrinsic clotting pathways.

Can a hormone imbalance give a positive pregnancy resULt?

On rare occasions you can encounter a false positive due to improper testing, expired pregnancy tests, rare medical conditions such as certain types of cancer, evaporation lines, a recent pregnancy or a chemical pregnancy.

What is a inconclusive urine test?

An inconclusive urine test is when the results do not definitively confirm or rule out a specific condition or substance. It means that the test did not provide clear enough results to make a definitive conclusion. Additional testing may be needed to obtain a proper diagnosis or confirmation.

How much plastic is in our food?

Studies have found that microplastics can be present in food and water sources. The exact amount of plastic in our food can vary depending on factors such as the type of food, packaging materials, and processing methods. While more research is needed to fully understand the extent of plastic contamination in our food, it is recognized as a growing concern for human health.

Would eating before a cholesterol blood test make the levels higher then they really are?

Yes, eating before a cholesterol test can temporarily increase your cholesterol levels, particularly triglycerides. For more accurate results, it's recommended to fast for about 9-12 hours before the test to get a baseline measurement.

How are cohesion and adhesion similar?

they're both properties of water. both involve the "sticking" property of H2O . cohesion is "sticking" together (water sticking to water) and adhesios is water "sticking" to something else. They are both important to life processes

50 mgcm2 of 7-dhc in skin seems like a high concentration might it be 50 mcgcm?

Yes, it's possible that the concentration was meant to be 50 mcg/cm2 instead of 50 mg/cm2, as 7-DHC is typically found in lower concentrations in the skin. It's always a good idea to double-check and confirm the correct units to prevent any errors in data interpretation.

How many colours are observed in Benedicts test?

There are 4 colors that can be observed in Benedict's test. This is a test that is conducted to show if there is a presence of reduced sugars. This test is also referred to as Benedict's reagent.

Can you get a accerate reading from two week old urine?

It is difficult to get an accurate reading from urine that is two weeks old depending on the type of testing accomplished. In a 24 hour urine study, the urine must be fresh and refrigerated. Often, after a week, the urine will begin to grow bacteria colonies that obscure testing results.

Is benzophenone polar or non polar?

If you'll take a look at its structure benzophenone is polar but during our laboratory we were able to determine if it's polar or non-polar by TLC. The TLC plate was developed in a mixture of petroleum ether and ethyl acetate with a 9:1 ratio respectively. This would mean that the solvent used is non-polar due to the large amount of petroleum ether. Finally our group was able to determine the Rf value of benzophenone and we found out that it has an Rf value of 0.4737 so this would mean that benzophenone is non-polar because its Rf value is near to 1.

How long does bad LDL cholesterol stay in you system?

The lifespan of LDL cholesterol in the body varies, typically ranging from a few days to a couple of weeks. However, the actual duration depends on various factors such as metabolism, diet, and overall health. Taking steps to reduce LDL levels through lifestyle changes can help prevent its accumulation in the body.

How many grams of glucose in blood?

well it would depend on how many grams of blood you're measuring wouldn't it

What does the Celtic warrior ring stand for?

..........warrior rings were rings made from melted spear tips taken from a vanquished enemy, worn on fingers, woven into hair and beards. The more rings the more victories a warrior had, the greater the warrior.

How long does it take to pass a drug test after smoking weed?

It typically takes about 1 to 30 days for marijuana to completely leave your system and no longer be detectable in a drug test, depending on factors such as frequency of use, metabolism, and the type of drug test being conducted.

Does you body emit energy?

Yes, the human body emits energy in the form of heat, light, and electromagnetic radiation. This energy is produced as a result of metabolic processes within cells and can be detected using various scientific instruments.

How long are Blood samples good for testing?

Blood samples can typically be stored for up to 1 week at refrigerated temperatures (around 4 degrees Celsius) before testing. For long-term storage, blood samples can be stored at frozen temperatures (below -20 degrees Celsius) for several months to years depending on the type of test being performed. It is important to follow specific sample storage and handling guidelines provided by testing facilities to ensure accurate results.

Is Bilirubin being at 1.7mg in human blood fatal or serious?

it's not fatal or serious although an adult should not have more than about a o.5 level(total) this is not a life threatening thing, have you have any liver studies done or a direct bilirubin level done? Neonatal Nurse Practitioner

When doctors do tests do they tell you if they find drugs in your system?

Doctors do not typically test for drugs unless there is a specific medical reason to do so, such as if drug use is affecting your health or treatment. If drugs are found during a test, the doctor may discuss this with you as part of their overall assessment and treatment plan. However, your confidentiality and privacy will be respected.