Doctor insights on:
Gram Negative Vs Gram Positive Bacteria Antibiotics
Staining technique: Gram positive organisms have a high amount of material in their cell walls which retain gentian violet (a purple stain) on slides looked at under the microscope. Gram negative organisms have the gentian violet washed out when subjected to acid-alcohol and then they are restained with a red stain which renders them red under the microscope. It is one way of loosely classifying bacteria. ...Read more
Please tell me can gram-negative bacteria test be positive in a catalase test, even if catalase tests are meant for gram-positive bacteria?
Catalase enzyme: Yes -many, many bacteria possess catalase. Classically the catalase test was used to distinguish Staph (+) from Strep (-), but there is a long list of bacteria that have it... includin Listeria, C diphtheriae, Burkholderia cepacia, Nocardia, the family Enterobacteriaceae (Citrobacter, E. coli, Enterobacter, Klebsiella, Shigella, Yersinia, Proteus, Salmonella, Serratia), Pseudomonas etc. ...Read more
Generally speaking, do gram positive or gram-negative bacteria cause prostatits/epidymitis infections. Generally speaking based off your experience.
I have gram positive flora in urine, leukcoytes, blood and bacteria all +1. Should I be on antibotic, is this considered a uti.
No: You don't mention if you have any symptoms while urinating, this could be a contaminated sample. ...Read more
Hello! In a sputum test, what do MODERATE GRAM POSITIVE COCCI, RARE GRAM POSITIVE RODS, FEW GRAM NEGATIVE RODS mean? My wife has CVID and is very ill.
Gram stain: The gram stain has been used for a long time to classify bacteria according to the chemistry of their cell walls (and hence whether they are gram positive or negative.) Cell shape and growth characteristic are also useful in grouping bacteria until more full speciation information becomes available. The gram stain is fast, reasonably reproducible by trained personnel and the groupings useful 4 rx ...Read more
My gram stain results: many gram negative rods, few gram positive cocci, strep.-like, rare wbcs. I completed a 10 day course of pcn, I still have s/sx?
Vaginal swab shows I have moderate gram positive bacilli and cocci moderate gram negative bacilli and few leucocyte. What does this mean?
Nothing: That is normal. This helps rule out a few things. If you are having symptoms, your physician will keep looking. ...Read more
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.
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. ...Read more
I had my vaginal discharge lab test and it says that gram postive bacilli ++++ and gram negative bacilli + gram positive cocci (singly and in pairs)?
Bacteria usually originate from the bowel, vagina, or skin as normal flora of the host.
Gram-positive organisms can include
staphylococcus saprophyticus (causative organism in 5% to 15% of utis) and
enterococcus faecalis it means urinary infection related to gram positive organism. ...Read more
In what situation?: We as physicians come in contact with patients who have various gram positive infection without a fear of getting infected/There are other healthcare providers who deal with gram positive bacteria as well. The lab workers, nurses and technisians and they are trained to protect themselves especially from MERSA which is the worst Gram Positive Infection anywhere ...Read more
Corynebacteria: Corynebacteria group together in a characteristic way, which has been described as the form of a "v", "palisades", or "chinese letters". ...Read more
An Infection: Gram positive bacteria are usually staph or strep infections. As the cystic pocket fills with the pus or bacteria it will start to become hard or firm over time. At this point antibiotics may not be helpful and therefore drainage or removal of the cyst is usually required. Don't let this drag on, as this will then start to damage some of the good tissues that are close to this area. ...Read more
Would bacitracin, novobiocin, and optochin susceptibility tests be effective tests for gram negative bacteria?
Sensitivity test: Yes. But the proof is in the giving of them to the patient. ...Read more
Can you tell me the genus and species of two gram positive pathogenic bacteria that are hemolytic and give the diseases t?
Gram-negative bacteria such as escherichia coli or klebsiella pneumoniae on the zone diameter interpretive chart, what does this mean?
Zone diameter chart: I do not know exactly what you are talking about lets chat. ...Read more
Are penicillins effective against gram-positive bacteria? Can't take sulfa, fluoroquinolones, or cephalosporins.
Penicillin are ok.: Penicillins are effective against gram + organism (G+), however you will need a culture to properly identify the bacteria.there is different type of penicillin base antibiotics and they can treat a variety of infections caused by (G+), such as otitis, pharyngitis, skin infection, etc. Again it will depend on the type of infection as well as the organism you are treating. Can also use tetracycline. ...Read more
I know Cipro (ciprofloxacin) is a broad spectrum antibiotic killing gram neg. & pos. Bacteria. What are the most common infections does it treat? & does it kill MRSA
Not good for MRSA.: Cipro (ciprofloxacin) is a fluroquinolone (FQ) drug that is mostly used for Gram neg. Infections that affect the GI tract, bladder, & some special infections that affect the head, neck, & respiratory tract. While it is effective againt some special, unusual Gram pos. bacteria, it does a poor job against Staph (like MRSA) or Strep. In fact, some evidence shows MORE nasal penetration by Staph when pts take FQ Abx. ...Read more
Which is the most acurat antibiotic to killstap aueras cauglase positive mssa in prostrate and gram positive cocci.
Prostatitis: MSSA Prostatitis is vey uncommon. Need to know sensitivities. In general mssa is sensitive to multiple antibiotics including penicillin derivatives. Bactrim, cipro (ciprofloxacin) and levaquin has better penetration to prostate comparing to others. Prostatitis especially chronic may require extended course of treatment: 3-6 months sometimes to see complete resolution of symptoms ...Read more
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