What does a positive coagulase test mean?

The tube coagulase test is a valid means of identifying Staphylococcus aureus, provided that only a firm clot that does not move when the tube is tipped is considered a positive reaction. The widely promulgated interpretation that all degrees of clotting in coagulase plasma are a positive identification of S.

Is Staphylococcus coagulase-negative an infection?

Coagulase-negative staphylococci (CoNS) are part of normal human skin flora [1]. While the virulence of these organisms is relatively low, they can cause clinically significant infections of the bloodstream and other tissue sites.

What does coagulase-negative Staphylococcus mean in urine?

Coagulase-negative staphylococci (CoNS) are a type of staph bacteria that commonly live on a person’s skin. Doctors typically consider CoNS bacteria harmless when it remains outside the body. However, the bacteria can cause infections when present in large amounts, or when present in the bloodstream.

What does coagulase positive Staphylococcus mean?

Staphylococcus aureus and other coagulase-positive staphylococci (CoPS) are opportunistic pathogens associated with a large spectrum of diseases that range from skin and mucosal infections to life-threatening septicemias in humans and animals.

What bacteria are identified by a positive coagulase test?

Coagulase test is used to differentiate Staphylococcus aureus (positive) which produce the enzyme coagulase, from S. epidermis and S. saprophyticus (negative) which do not produce coagulase.

What antibiotics cover coagulase-negative staph?

If coag-negative staph is considered pathogenic, vancomycin is the preferred treatment. Second-line alternatives that are also active in the setting of methicillin resistance such as telavancin, linezolid, or daptomycin may be considered based on patient factors and the site of infection.

What diseases can coagulase-negative staphylococcus cause?

Coagulase-negative staphylococcal skin conditions

  • Miliaria. S.
  • Atopic dermatitis.
  • Competing against pathogens.
  • Surgical site infections.
  • Bacteraemia.
  • Intravascular device infection.
  • Prosthetic vascular graft infections.
  • Prosthetic valve endocarditis.

Can coagulase-negative staphylococcus cause UTI?

Ten to 20% of acute UTI’s are caused by coagulase-negative Staphylococcus saprophyticus (young sexually active females) and 5% or less are caused by other gram negative rods (Klebsiella, Proteus, Citrobacter) or Enterococcus species.

Is Staphylococcus aureus a STD?

There are some traditional people that would be advertising that they have a super concoction that would even cure staph aureus. Staph infection is not a sexually-transmitted disease. However, due to the fact that it is on the surface of the skin, it can be passed across but it is not a sexually transmitted disease.