Silver sulphadiazine cream is used in burn wounds because
**Core Concept**
Silver sulphadiazine cream is used in burn wounds to prevent and treat topical bacterial infections. It acts by releasing silver ions, which have broad-spectrum antimicrobial activity, thereby reducing the risk of sepsis and promoting wound healing. The mechanism of action involves the disruption of bacterial cell membranes and the inhibition of DNA synthesis.
**Why the Correct Answer is Right**
The correct answer is because silver sulphadiazine cream exhibits potent antibacterial properties against a wide range of microorganisms, including Pseudomonas aeruginosa, Staphylococcus aureus, and Escherichia coli. The release of silver ions from the cream leads to the formation of reactive oxygen species, which damage bacterial DNA and ultimately cause cell death. The cream's ability to prevent bacterial colonization and promote wound healing makes it an essential component of burn wound management.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because while silver sulphadiazine cream does have some antifungal properties, it is primarily used for its antibacterial activity.
**Option B:** This option is incorrect because the primary mechanism of action of silver sulphadiazine cream is not through the inhibition of proteolytic enzymes, but rather through the disruption of bacterial cell membranes.
**Option C:** This option is incorrect because while silver sulphadiazine cream does have some hemostatic properties, it is not primarily used for this purpose in burn wound management.
**Clinical Pearl / High-Yield Fact**
It is essential to note that silver sulphadiazine cream should be used with caution in patients with impaired renal function, as the metabolites of sulphadiazine can accumulate and cause toxicity.
**Correct Answer:** C.