Quick Answer: Why Was My Rapid Strep Test Came Back Negative?

Can strep throat be confused with something else?

Strep throat can look a lot like other illnesses, including: Mononucleosis (which also features swollen glands, fever, and skin rash) Lyme disease (from a tick bite) Mumps (caused by a virus).

Can I have strep throat without a fever?

Yes, you can have strep throat without having a fever. Doctors will commonly look for five primary signs in the first stage of diagnosing strep throat: No Cough. If you have a sore throat, but aren’t coughing, it could be a sign of strep.

Are home strep tests accurate?

The Medchoice Strep A Rapid Test Kit by BTNX sells on Amazon for about $40 for a box of 25 tests. The company claims their test is very accurate, with a sensitivity of 97% and a specificity of 95%. This means there is a low false negative rate and a low false positive rate.

What causes false negative strep test?

Rapid strep tests can cause a false-negative result even when strep is actually the cause of the infection for several reasons: Incorrect swab collection most commonly by accidentally extracting saliva from the tongue on the swab or from not swabbing the back of the throat correctly.

What does a negative strep throat test mean?

A normal or negative test means that strep bacteria may not be present. Sometimes, negative results are wrong. This means that you may have a negative rapid strep test result and still have strep throat. A throat culture may be done if the rapid strep test result is negative.

What illness mimics strep throat?

The only other sore throat that can mimic strep throat (but with a negative throat culture) is that which occurs with infectious mononucleosis.

How often is strep misdiagnosed?

Health care experts recommend that parents and teens become aware of these symptoms and tell doctors to consider F-throat, especially if a patient’s throat culture tests negative for strep throat. It is estimated that up to 15 percent of all diagnoses in the United States are incorrect.

What causes recurring strep throat in adults?

Weak Immune System – The strep bacteria is a formidable opponent. If you are in overall poor health or have a weakened immune system because of an underlying condition, then you are at risk of strep recurrence.

Why would a rapid strep test be false negative?

The clinical issue is that rapid strep tests have very high specificity – in the range of 98 percent to 99 percent – so there are very few false positives. However, the sensitivity of most current rapid strep tests ranges from 90 percent to 95 percent, so there is a greater chance of false negatives.

How soon can Strep be detected?

But, it turns out it is not true that it takes 2-3 days of strep illness before the strep test turns positive. The way it does work is as follows: You are not infected with strep until the strep germ lands on your throat and begins to infect your throat.

Can you test positive for strep but have mono?

When a rapid strep test is performed, it is not uncommon for your pediatrician to also complete a routine test for mononucleosis. This condition presents many of the same symptoms as strep throat, which is why testing is usually done for both at the same time.

Is strep contagious to adults?

Unfortunately, streptococcal bacteria spread quickly, and individuals with strep throat can be contagious for up to a few days before they start showing symptoms. This means that someone who has not gotten sick yet can spread the disease.

How long is strep contagious for?

When you get infected, you typically start to show symptoms about 2 to 5 days after you were exposed to the bacteria. You can stay contagious for up to a month if you don’t get treated. Antibiotics can prevent the infection from spreading. People who take antibiotics stop being contagious after about 24 hours.

Can strep throat turn into something else?

Strep infection may lead to inflammatory illnesses, including: Scarlet fever, a streptococcal infection characterized by a prominent rash. Inflammation of the kidney (poststreptococcal glomerulonephritis) Rheumatic fever, a serious inflammatory condition that can affect the heart, joints, nervous system and skin.

Can you get rid of strep without antibiotics?

Will Strep Throat Go Away on Its Own? Strep throat typically goes away in three to seven days with or without antibiotic treatment. However, if you don’t take antibiotics, you can remain contagious for two to three weeks and are at a higher risk for complications, such as rheumatic fever.

Can you test negative for strep and still have it?

The rapid strep test can give false-negative results even when strep bacteria are present. When the results of a rapid strep test are negative, many doctors recommend doing a throat culture to make sure that strep throat is not present. Neisseria meningitidis. This bacteria can cause meningitis.