Question 1

what does lactose fermenting gram negative bacilli urine mean?

Accepted Answer

Probably E Coli: There are many dozens of bacteria that can be lactose fermenting gram negative bacilli. This is just a classification scheme based on gram positive or negative; rod (bacillus) or cocci (ball); and what they grow on in a laboratory evaluation. Examples include e. Coli, klebsiella, enterobacter, citrobacter.

Question 2

i've been diagnosed with an e. coli uti with the strain of lactose-fermenting gram negative. do i need to avoid eating dairy products? thank you!

Accepted Answer

No: Lactose is simply used to tell what kind of bug it is.  You're fine with dairy.

Question 3

less 10,000 cfu/ml gram negative rods on urine culture.  symptoms urge to pee constantly, blood in urine and painful. i had also taken two macrobid before the culture,  could this result in lower bacteria?

Accepted Answer

: Yes it could.

Question 4

how could i get lactose positive gram negative bacilli?

Accepted Answer

Normal flora: These live in everybody's gut. They are normal body flora, and for the most part your friends. They can get in the wrong places and cause infections.

Question 5

urine test came back 50000-100000 gram positive and gram negative flora. what does this mean ?

Accepted Answer

Gram stain:  This tells you that one type of bacteria did not pick up gram stain and another one did. Gram stains are used to help determine what type of bacteria are causing an infection.

Question 6

does mgen being a gram negative organism typically produce leukocytes and nitrites in urine?

Accepted Answer

: No.  Mycoplasmas lack cell wall and are not stained by gram stain.  Nitrites produced by the reduction of dietary nitrates by urinary gram-negative bacteria, especially E. coli, Klebsiella, and Proteus.

Question 7

a friend of mine has urine test & resulted rare gram positive cocci & gram negative bacilli-what does this mean? she has very high fever as well.

Accepted Answer

Fever: OK...this is likely contamination of the urine source.  In most infections there will be the predominance of one bacterial species causing the issue...and there will be many per high powered field.  In her case, there are 2 types and only rare (per high powered field) and you didn't mention any white blood cells either.  This doesn't look like much to my eyes.

Question 8

my urine test came back with gram negative bacilli greater than 100,000? is it good im being treated for uti? does stool cause this bacteria or is that mainly e coli? thank you. im on cefdinir for 5 days?

Accepted Answer

: A urine test showing the presence of bacteria is the very definition of a UTI (urinary tract infection), so yes, it is good that you are being treated with Cefdinir.  The most common gram-negative bacteria in UTIs is E. Coli, but other stool bacteria can cause them as well.

Question 9

gram negative bacilli found in urine? does this mean a urinary tract infection? doc didnt even mention it.i am urinating more frequently but no pain

Accepted Answer

GNB: A urine microscopy showing GNB may not be infection and can be a contaminant. Suggest a clean catch urine be done and a urine culture of needed but done right. Sounds like you have no symptoms and this may not be an issue.

Question 10

do all strains of staphylococcus ferment mannitol?

Accepted Answer

Yes: Generally, all members of the genus staphylococcus will ferment mannitol.

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Doctor answers about:

Lactose fermenting gram negative rods in urine

A member asked:

What does lactose fermenting gram negative bacilli urine mean?

A member asked:

I've been diagnosed with an e. coli uti with the strain of lactose-fermenting gram negative. do i need to avoid eating dairy products? thank you!

A member asked:

Less 10,000 cfu/ml gram negative rods on urine culture. symptoms urge to pee constantly, blood in urine and painful. i had also taken two macrobid before the culture, could this result in lower bacteria?

A member asked:

How could i get lactose positive gram negative bacilli?

A member asked:

Urine test came back 50000-100000 gram positive and gram negative flora. what does this mean ?

A member asked:

Does mgen being a gram negative organism typically produce leukocytes and nitrites in urine?

A member asked:

A friend of mine has urine test & resulted rare gram positive cocci & gram negative bacilli-what does this mean? she has very high fever as well.

A member asked:

My urine test came back with gram negative bacilli greater than 100,000? is it good im being treated for uti? does stool cause this bacteria or is that mainly e coli? thank you. im on cefdinir for 5 days?

A member asked:

Gram negative bacilli found in urine? does this mean a urinary tract infection? doc didnt even mention it.i am urinating more frequently but no pain

A member asked:

Do all strains of staphylococcus ferment mannitol?

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