Can they test for dilution in a one time urine drug test kit?

1. Serial Dilution Test For Bacteria

In patients where a discrepancy between pituitary tumor size and prolactin elevation is observed, a test for false-low serum prolactin (hook effect) should be performed by serial dilution. See PLPMA / Prolactin, Pituitary Macroadenoma. Serial dilution; Blocking agents; Pituitary hCG Serum follicle-stimulating hormone (FSH) FSH 45 mIU/mL essentially rules out pregnancy; Estrogen replacement for 2 weeks with repeat testing; if source is pituitary, hCG will be suppressed to ≤2 IU/mL.

They certainly can--they use an adulteration test.

Will water dilute an etg test?

Water can dilute an ETG test. However, you will have to drink a large amount of water for the dilution process.

What are the main sources of error in a BOD test?

1. dilution error 2.blame the test sample 3.poor maintenance of bottles(cleaning)

Phenol coefficient test in microbiology?

Phenol coefficient test is best known screening test in which potency of a disinfactant is compared with that of phenol. A series of a dilutions of phenol and the disinfactant being tested are prepared. A standard amount of Salmonella tyhpii and Staphylococcus aureus are added to each dilution; the dilutions are then placed in a 20 to 37oC water bath. At 5-minute intervas, samples are withdrawn from each dilution and used to inoculate a growth…

Use of test tube?

In microbiology it is mainly used for either serial dilution and for slant prepration for culturing microbes

How do you carry out quantitative test method for Widal test?

That is a good question! The answer is simple. You do step by step dilution of the serum with probably normal (isotonic) saline solution and test the same for Widal test. This is how you do quantitative test for many other tests also.

What is the use of chick-Martin test?

Chick martin test is used to estimate the efficacy of a disinfectant. In this test a standard culture of Salmonella typhi, is tested for a fixed period (30 minutes) against various concentrations of phenol solution and various concentrations of the testing disinfectant; the result is expressed as the phenol coefficient, the highest dilution of the given disinfectante that kills bacteria, divided by the highest dilution of phenol that sterilizes the solution, within the measured time.

What is minimum inhibitory concentration?

Minimum Inhibitory Concentration (MIC) of an antibiotic refers to the maximum dilution of the drug which will inhibit the growth of the test organism.

Definition of dilution and dilution factor?

As I understand it, the dilution refers to the dilution ratio. If you add 1 part of something to 4 parts of something else, the dilution ratio is 1 to 4. The dilution factor counts all the parts and expresses the same thing as 1 out of 5.

12 Distinguish between dilution and dilution factor?

As I understand it, the dilution refers to the dilution ratio. If you add 1 part of something to 4 parts of something else, the dilution ratio is 1 to 4. The dilution factor counts all the parts and expresses the same thing as 1 out of 5.

What is the effect of dilution on viscosity of oil?

dilution will reduce the viscosity The effect of dilution on viscosity of oil is that it will decrease.

Distinguish between dilution and dilution factor?

Dilution is the process of making a less concentrated solution and dilution factor is the amount of solvent required to make a certain concentration of solution.

What is infinite dilution?

Infinite dilution means such a large dilution so that when you add more solvent there is no change in concentration.

How does the number of moles of solute before a dilution compare with the number of solute after the dilution?

Before the dilution the number of moles is higher.

THE urine was almost clear do that mean you passed my drug test?

No, urine color don't have noting to do with a THC concentration. Also its possible to fail for dilution or they can retest you.

What is dilution factor?

Serial Dilution Test For Bacteria

In chemistry and biology, the dilution factor is the total number of unit volumes in which the material is dissolved. As I understand it, the dilution refers to the dilution ratio. If you add 1 part of something to 4 parts of something else, the dilution ratio is 1 to 4. The dilution factor counts all the parts and expresses the same thing as 1 out of 5.

Does ultra eliminex herbal supplement help you pass a drug test?

It is loaded with B2 (riboflavin), Creatine Monohydrate and other good stuff to help pass a marajuana drug test without obvious dilution...I have tried it and it works.

What is the difference between dilution and diffusion?

what is the difference between a diffusion and a dilution

How does dilution affect concentration of a solution?

Dilution reduces the concentration of a solution.

What is another term for dilution?

Dilution may also be described as 'watering down' or 'mixing', as well as 'diffusing', although none are exact synonyms of dilution.

Does drinking bleach water help you pass a marijuana drug test?

No, no, no, a thousand times no. DO NOT drink bleach water! It doesn't do anything to help you pass a marijuana drug test, but it'll kill you dead if you screw up the dilution even a little.

Will drinking a bunch of water help u pass a drug test?

Yes. it is the best method for passing a drug test. this method is called dilution, but be sure to take vitamin b12 (turns urine yellow) or the lab will think that you tried to cheat.

How is the amount of antimyocardial antibodies measured?

serum is diluted, or titered, and the test is done again. The serum is then further diluted and the test repeated until the serum is so dilute that fluorescence is no longer seen. The last dilution that showed fluorescence is the titer reported.

What is helium dilution technique?

How is FRC measured by helium dilution, in specific detail.

Why conductivity increases with dilution?

Molar conductivity is what increases dilution. It is the conductivity of an electrolyte solution.

What is the key to remember when considering the dilution of a solution?

To remember that only water is added in the dilution.

How long does a pregnancy test take to answer negative or positive?

It usually takes 10 days after the day of conception( if u remember) if not then wait for the missed period and take the test. Also take the test in the morning cause if its early the hcg concentration in your day sample might be too low to get tested because of the dilution.

Uses of normal saline?

it is used in many field of lab test such as it is used in dilution it can be used in microorganism growth it can be used in stool slide it can also be used in intravenous,beside glucose.etc

In a use dilution test a chemical is evaluated by its ability to kill dried clostridium sporonges or bacillis subtilis endospores Why is this considered a stringent test?

A measure of determining the effectiveness of a disinfectant using serial dilutions. definition found in intro to microbiology by Tortora, Funke, and Case.

What is a dilution series?

the dilution of two or more solutions of sulfate and chemical microbial sists of plaque

What is the key idea to remember when considering the dilution of a solution?

To remember that Only water is added in the dilution.

Why moles solute before dilution equals moles solute after dilution?

This assumes you are using water (or whatever the original solvent is) to do the dilution so you are not adding more solute, only more solvent,

Why is dilution necessary in a pure culture?

if a sample is plated without dilution, then there wont be any isolated colonies. So dilution is necessary for getting isolated colonies, from which pure culture shall be obtained.

Is dilution is the addition of solute to decrease the concentration of solvent?

No. dilution is the addition of solvent to decrease the concentration of a solute.

Is the concentration change after dillution?

Yes, the concentration changes after dilution. By definition dilution means to lower the concentration.

What is the molar conductivity of kcl in infinit dilution?

what is the literature value of KCl molar conductivity at infinite dilution

What is the formula used to calculate dilution ratios?

A dilution ratio is normally used for a mixture of two fluids: an active component and a carrier solvent. The dilution ratio is the ratio of the volume of the solvent to the volume of the active component.

How could you test if cordial is a suspension or solution?

If the cordial is a suspension it will have a continuous phase of stability. Whereas if it is a solution then dilution will not cause separation. If the cordial sinks to the bottom of the glass, it is a suspension and if it gets mixed then it is solution.

What is the differences between a streak plate technique and a serial dilution technique?

what is serial dilution and spread plate technique

What are the advantages of dilution plate method?

serial dilution can give the relation b/w the consenteration and the growth of bacteria

What happens to the volume and dilution of urine when alcohol is consumed?

Decreased ADH production increases urine volume and dilution.

How much quinine in hyland's homeopathic leg cramps with quinine?

Realistically? None. Homeopathic medications are heavily diluted. The quinine dilution is a 3x (or approximately 1.5 c) dilution. So for the sake of easy math lets say it's an even 2c dilution. That means the quinine is diluted 1 part quinine in 100 parts dilution (like water) and part of that dilution is diluted in another 1:100 parts of dilution (more water). so...what's that work out to? One molecule of quinine per 10,000 molecules of…

The human chorionic gonadotropin (hCG) blood test measures the level of hCG hormone present in a sample of your blood.

hCG is produced during pregnancy. Your doctor may refer to the hCG blood test by another name, such as the:

• beta-hCG blood test
• quantitative blood pregnancy test
• quantitative hCG blood test
• quantitative serial beta-hCG test
• repeat quantitative beta-hCG test

There are important differences between hCG blood tests and the hCG urine tests that you can purchase over the counter.

Urine tests can be influenced by factors such as dehydration and the time of day that you test, while an hCG blood test can provide conclusive results even in cases where hCG levels are quite low.

During pregnancy, cells in the developing placenta make hCG. The placenta is the sac that nourishes the egg after it’s fertilized and attaches to the uterine wall.

hCG can first be detected in a blood sample about 11 days after conception. Levels of hCG continue to double every 48 to 72 hours. They reach their peak around 8 to 11 weeks after conception.

hCG levels then decline and level off, remaining steady for the rest of the pregnancy.

The hCG blood test is performed to:

• confirm pregnancy
• determine the approximate age of the fetus
• diagnose an abnormal pregnancy, such as an ectopic pregnancy
• diagnose a potential miscarriage
• screen for Down syndrome

The hCG blood test is sometimes used to screen for pregnancy before you undergo certain medical treatments that could potentially harm a developing baby. Examples of these treatments include X-rays.

If an hCG test concludes that someone is pregnant, healthcare professionals can ensure that they’re protected and that the fetus isn’t harmed by those medical treatments.

Beta hCG is considered a tumor marker, which means it’s a substance that’s excreted by some kinds of tumors. That’s why, in some cases, the hCG blood test may also be used to evaluate and manage certain types of cancer.

Cancers that can cause higher-than-normal hCG levels include:

• cancer of the uterus, or choriocarcinoma

Noncancerous conditions, such as cirrhosis, ulcers, and inflammatory bowel disease (IBD), can also result in hCG levels being elevated.

Your doctor may order this test as part of a series of lab tests to identify the cause of certain symptoms.

In men

Although hCG is closely associated with pregnant women, the hormone can also be present in men. An hCG blood test can indicate that a man has testicular cancer.

If a man detects a lump in one of his testicles, or if a doctor suspects that he’s at risk for testicular cancer, the test can be used to see if hCG is present.

If hCG is present in a man’s blood, further testing will be needed to determine the cause.

The quantitative test measures the level of hCG hormone in a blood sample.

A healthcare professional takes a blood sample by following these steps:

1. An elastic band is wrapped around your upper arm to stop the blood flow and to make the veins in your arm more visible. This is so the needle can be inserted easier.
2. A vein is located and the skin around the vein is cleaned with alcohol.
3. The needle is inserted into the vein and a tube is attached to the end of the needle to collect the blood.
4. After enough blood is collected, the elastic band is removed from your arm.
5. As the needle is removed, cotton or gauze is placed onto the puncture site.
6. Pressure is applied to the cotton or gauze, and it’s secured with a bandage.

While the needle is being inserted, you may feel a brief stinging or pinching sensation, or you may not feel anything at all.

When the needle is in the vein, you may feel minor discomfort or stinging. Afterward, you may experience some mild throbbing at the puncture site.

After your hCG levels have been measured in the blood sample, the results are sent to your doctor. They may request an appointment with you to discuss the results of the test.

No particular preparation is required for the hCG blood test.

Risks involved with having blood taken are minimal.

There may be a small amount of bruising where the needle was inserted. This can be minimized by applying pressure to the area for several minutes after the needle is removed.

In very rare cases, the following may occur:

• excessive bleeding
• hematoma, which happens when blood accumulates under your skin
• infection at the needle site
• swollen veins

When your lab test comes back, your doctor will tell you what your hCG levels are. These levels are measured in milli-international units of hCG hormone per milliliter of blood (mIU/mL).

This table shows the normal hCG levels during pregnancy for each week from your last menstrual period, according to the Australian government’s pregnancy resource Pregnancy, Birth, and Baby.

Normal hCG levels in nonpregnant women are less than 10.0 mIU/mL.

If your hCG levels are outside of the normal range, it could mean a variety of things. Your doctor will help you interpret the results.

Levels of hCG that are lower than normal could mean:

• a miscalculation of pregnancy dating
• a possible miscarriage or blighted ovum
• an ectopic pregnancy

Levels of hCG that are higher than normal could mean:

• a miscalculation of pregnancy dating
• a molar pregnancy, when an abnormal mass forms inside the uterus after fertilization instead of a normal embryo
• a multiple pregnancy, such as twins or triplets

No test is 100 percent accurate every time.

The hCG test can give both false-negative results and false-positive results for pregnancy. Your doctor will help you figure out your results or perform follow-up testing if there’s any doubt.

Certain medications, including those that contain hCG, can interfere with hCG blood test results. These include fertility drugs such as Profasi, Pregnyl, and Pergonal.

Smoking marijuana can also result in elevated hCG levels.

Test results can also be influenced by the presence of germ cell tumors. Germ cell tumors can be cancerous or benign, and they’re usually found in the reproductive organs. These tumors grow in the same cells as your eggs or sperm.

A high hCG level in absence of pregnancy could indicate that your doctor needs to do more testing to see if cancer is a factor.

False-negative results

If an hCG test comes back negative, that generally means you’re not pregnant.

However, if the test was performed too early in the pregnancy, before your body has had time to produce enough hCG, you can get a false negative.

If there’s a false-negative test result, the test indicates that a woman isn’t pregnant, when in fact she is.

Because hCG levels change so quickly during early pregnancy, the hCG blood test should be repeated within 48 to 72 hours to observe how the hormone level is changing.

False-positive results

On the other hand, hCG can be present in some nonpregnant conditions, potentially causing a false-positive hCG pregnancy test.

If there’s a false-positive test result, the test indicates that a woman is pregnant, when in fact she isn’t.

It’s also possible to get a false-positive result if your body produces certain types of antibodies that have fragments of the hCG molecule, or if there were errors in the lab.

If there’s any doubt about the results, a different testing method can be used to confirm.

Don’t panic if your numbers don’t match the “normal” levels exactly. These figures are estimates, and you can have hCG levels that are lower than normal and still have a healthy baby.

You’ll receive an ultrasound around six weeks, which is considered much more accurate than your hCG numbers.

If there’s reason to be concerned about your pregnancy, multiple hCG readings done a couple of days apart will be used to assess your situation.

Numbers can vary, so it’s important to listen to your doctor concerning the health of your pregnancy. Your doctor will check your hCG levels if they detect a problem.

Ask questions if you’re concerned about something, and let them know immediately if you’re experiencing any problems.