Question 1

could you tell me what are my chances of a false positive?

Accepted Answer

Depends: All testing derives information within statistical norms.  This means that sometimes a test might show a positive result when in fact it was not.  The chances vary with what you are looking for and the reliability of the laboratory.  Confirmatory tests may be needed.

Question 2

what causes a false positive rpr?

Accepted Answer

Lots of things: Having lupus, being middle-aged or elderly, lyme disease, or just dumb luck. Some say even pregnancy can do it. Glad it was a false-positive -- syphils is still a real nuisance.

Question 3

what could cause a false-positive a1c?

Accepted Answer

Hemoglobin variant: Some genetic variants of hemoglobin can produce spurious high results for a1c, by some methods.

Question 4

what causes false positive alt result?

Accepted Answer

No such thing: If the alt is elevated, something's caused the enzyme to leak from your liver and/or skeletal muscles. Today's assays are reliable. But this does not necessarily means you are sick. It can be from the ultramarathon you just ran, or the Ibuprofen you took for the cold you're now better from. Your physician knows how to follow this up -- often just a repeat draw will lay concerns to rest.

Question 5

are false positive herpes test likely?

Accepted Answer

No: A positive antibody means you're infected with herpes.  That doesn't mean you're developing outrbreaks, but it does mean that you at least have latent herpes somewhere in your body.  A positive culture or pcr for herpes means you have an active lesion.

Question 6

what shows up as false positive for valium?

Accepted Answer

See below: For a list of drugs that may cause a false positive test for valium, visit the site listed below:
https://www.urmc.rochester.edu/encyclopedia/content.aspx?contenttypeid=167&amp;contentid=benzodiazepine_urine

Question 7

can you have a false positive herpes test?

Accepted Answer

Yes!: False positive test results are test results which say a person has a disease or condition when they don't actually have it. False positive results can be seen with many diagnostic tests, including STD tests. . False positive HSV-2 results can occur. Since this concerns you I suggest you go to a medical clinic and have a new herpes test done. I wish you well with your health!

Question 8

what conditions cause false positive for thc?

Accepted Answer

Just a few factors: Factors that interfere with test results include: apple juice, blood in urine,  technical error, adulteration of specimen, lower cut off levels of screen  etc.
Confirmatory tests can be done if positive.

Question 9

what does false positive diagnos on lupus mean?

Accepted Answer

Positve not lupus: If a  blood  test  is  positve, assuming quality lab parameters (this means the lab did it correctly); it is positive. There are  certain tests that are  + in people  with lupus. Sometimes  people  who  do  not have  lupus have + blood tests. Some refer  to these clincial settings as false positive for lupus. To diagnose  lupsus you need  special scrutiny and sometimes this can be convoluted.

Question 10

are there ways to get a false positive hida scan?

Accepted Answer

Yes: Specifically, if the hida scan is done to diagnose acute cholecystitis, there are many potential causes of a false positive.  Some reasons include nonfasting state, prolonged fasting, recent use of narcotics, liver dysfunction due to chronic disease or alcoholism, and more.

Get Virtual Care

For Businesses

About Us

HealthTap Online Primary Care Doctors Accepting New Patients

Doctor answers about:

Cotinine false positive

A member asked:

Could you tell me what are my chances of a false positive?

A member asked:

What causes a false positive rpr?

A member asked:

What could cause a false-positive a1c?

A member asked:

What causes false positive alt result?

A member asked:

Are false positive herpes test likely?

A member asked:

What shows up as false positive for valium?

A member asked:

Can you have a false positive herpes test?

A member asked:

What conditions cause false positive for thc?

A member asked:

What does false positive diagnos on lupus mean?

A member asked:

Are there ways to get a false positive hida scan?

HealthTap Online Primary Care Doctors Accepting New Patients

Telemedicine

Primary Care

Manage Your Conditions

Women's Health

Children's Health

Men's Health

Senior Health

Wellness, Prevention & Lifestyle

Sexual Health

Mental & Behavioral Health

Travel Medicine

Urgent Care

Didn't find what you're looking for?

More of what we treat

Allergies

Antibiotics

Asthma

High Blood Pressure

Prescriptions

Type 2 Diabetes

For Businesses

Company

Health Content

Join Us

Download HealthTap

Questions?