What does NNA mean in CHEMISTRY
NNA is an abbreviation used in the field of science, particularly in microbiology. It stands for Neomycin Nalidixic Acid.
NNA meaning in Chemistry in Academic & Science
NNA mostly used in an acronym Chemistry in Category Academic & Science that means Neomycin Nalidixic Acid
Shorthand: NNA,
Full Form: Neomycin Nalidixic Acid
For more information of "Neomycin Nalidixic Acid", see the section below.
What does NNA stand for?
NNA is a combination of two antibiotics:
- Neomycin: An aminoglycoside antibiotic that inhibits protein synthesis in bacteria.
- Nalidixic Acid: A quinolone antibiotic that inhibits DNA synthesis in bacteria.
NNA Meaning in Science
NNA is commonly used in microbiology laboratories as a selective growth medium for the isolation of certain types of bacteria. It selectively inhibits the growth of Gram-positive bacteria, while allowing the growth of Gram-negative bacteria. This is because Gram-positive bacteria are more susceptible to neomycin, while Gram-negative bacteria are more resistant to it.
Uses of NNA
NNA is primarily used for the isolation and identification of Pseudomonas aeruginosa, a common Gram-negative bacterium that can cause infections in humans, particularly in the respiratory and urinary tracts. It can also be used to isolate other Gram-negative bacteria, such as Escherichia coli and Salmonella typhimurium.
Essential Questions and Answers on Neomycin Nalidixic Acid in "SCIENCE»CHEMISTRY"
What is NNA?
Neomycin Nalidixic Acid (NNA) is a topical antibiotic combination used to treat skin infections caused by bacteria. It contains two active ingredients: neomycin and nalidixic acid.
How does NNA work?
Neomycin is an aminoglycoside antibiotic that kills bacteria by interfering with their protein synthesis. Nalidixic acid is a synthetic antibiotic that blocks the enzymes needed for bacteria to replicate their DNA. Together, these ingredients provide broad-spectrum antibacterial activity against a wide range of bacteria.
What skin infections can NNA treat?
NNA is effective in treating a variety of skin infections, including:
- Minor cuts, scrapes, and burns
- Impetigo
- Infected eczema
- Folliculitis
- Cellulitis
How is NNA applied?
NNA is typically applied to the affected area 2-3 times daily as directed by a healthcare professional. The area should be cleaned and dried before applying the medication. A thin layer of NNA should be gently massaged into the skin.
What are the potential side effects of NNA?
Common side effects of NNA include:
- Skin irritation, redness, and itching
- Allergic reactions
- Bacterial resistance (with prolonged use)
When should I seek medical attention while using NNA?
Seek medical attention immediately if you experience:
- A severe allergic reaction (difficulty breathing, hives, swelling of the face, lips, tongue, or throat)
- Worsening of the skin infection
- New or worsening pain, swelling, or redness at the application site
- Fever or chills
Is NNA safe to use during pregnancy or breastfeeding?
It is recommended to consult with a healthcare professional before using NNA during pregnancy or breastfeeding.
Final Words: NNA is an abbreviation that refers to a combination of two antibiotics, Neomycin and Nalidixic Acid. It is commonly used in microbiology laboratories as a selective growth medium for the isolation of Gram-negative bacteria, particularly Pseudomonas aeruginosa.
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