Question 75

Petechiae present as multiple small red dots on a patient's skin.

Petechiae are tiny, pinpoint-sized red or purple spots that appear on the skin and are caused by bleeding underneath the skin. They typically manifest as multiple small red dots, making them distinctive in appearance.

A) Hematoma

Hematoma refers to a localized collection of blood outside of blood vessels, often resulting in a raised, swollen area that can be blue, purple, or yellow as it heals. It does not present as multiple small red dots, thus making it an incorrect option for this question.

B) Ecchymosis

Ecchymosis is a larger area of bruising that occurs due to bleeding under the skin, usually appearing as a larger, irregularly shaped dark mark. Although it involves bleeding, it does not present in the form of multiple small red dots, which differentiates it from petechiae.

C) Hemolysis

Hemolysis is the breakdown of red blood cells, which can lead to various symptoms and conditions, but it does not directly manifest as red dots on the skin. Instead, it may cause jaundice or other systemic symptoms, making it irrelevant to the description in the question.

D) Petechiae

Petechiae are the correct answer as they are characterized specifically by the presence of numerous small red spots on the skin. These spots result from tiny blood vessels breaking and leaking blood into the skin, fitting the description provided in the question perfectly.

Conclusion

The presence of multiple small red dots on the skin is a definitive characteristic of petechiae, which distinguishes it from other options like hematoma and ecchymosis that present differently. Hemolysis does not produce such skin manifestations, reinforcing that petechiae is the only correct answer in this context.