Bleeding Disorders: Platelet Disorders

What is the primary characteristic of bleeding associated with platelet disorders?

What is the term for a decrease in the number of platelets in the blood?

What is the significance of petechiae in bleeding disorders?

What is the normal range for platelet count above which bleeding risk decreases?

What type of bleeding is often seen in thrombocytopenia?

A patient with thrombocytopenia is experiencing spontaneous bleeding. Which of the following vessels is most likely to be affected?

A decrease in platelet production can lead to which of the following disorders?

What is the primary difference between petechiae and purpura?

Which of the following statements about thrombocytopenia is true?

Which of the following is a possible mechanism leading to bleeding disorders?

Bleeding Associated with Platelet Disorders

Platelet disorders result from a decrease in the number of platelets due to either decreased platelet production, increased destruction, or impaired function.

Characteristics of Bleeding

Spontaneous bleeding often occurs in small vessels of mucous membranes and skin, specifically in the mouth, nose, GI tract, and uterine cavity.

Cutaneous Bleeding

Characterized by pinpoint hemorrhages (petechiae) and bruising (purpura).
Petechiae indicate platelet deficiency, not dysfunction.

Thrombocytopenia

Defined as reduced platelets, with a count of less than 150,000/μL.
The lower the platelet count, the higher the bleeding risk.
Severe thrombocytopenia is associated with a higher risk of bleeding.

Bleeding Associated with Platelet Disorders

Platelet disorders result from a decrease in the number of platelets due to either decreased platelet production, increased destruction, or impaired function.

Characteristics of Bleeding

Spontaneous bleeding often occurs in small vessels of mucous membranes and skin, specifically in the mouth, nose, GI tract, and uterine cavity.

Cutaneous Bleeding

Characterized by pinpoint hemorrhages (petechiae) and bruising (purpura).
Petechiae indicate platelet deficiency, not dysfunction.

Thrombocytopenia

Defined as reduced platelets, with a count of less than 150,000/μL.
The lower the platelet count, the higher the bleeding risk.
Severe thrombocytopenia is associated with a higher risk of bleeding.

This quiz covers bleeding disorders associated with platelet disorders, including decreased platelet production, increased destruction, and impaired function. Learn about the symptoms and signs of thrombocytopenia.