How do you describe purpura?
Purpura (/ˈpɜːrpjʊərə/) is a condition of red or purple discolored spots on the skin that do not blanch on applying pressure. The spots are caused by bleeding underneath the skin secondary to platelet disorders, vascular disorders, coagulation disorders, or other causes.
What is the meaning of petechial?
: a minute reddish or purplish spot containing blood that appears in skin or mucous membrane as a result of localized hemorrhage.
What is difference between petechiae and purpura?
Petechiae are small (1–3 mm), red, nonblanching macular lesions caused by intradermal capillary bleeding (Figure 181-1). Purpura are larger, typically raised lesions resulting from bleeding within the skin (Figures 181-2 and 181-3).
What can cause a non-blanching rash?
Non-blanching Rashes
- Meningococcal sepsis.
- Henoch-Schönlein purpura (HSP)
- Immune thrombocytopenic purpura (ITP)
- Haemolytic uraemic syndrome (HUS)
- Forceful coughing and/or vomiting.
- Non-accidental injury.
- References.
Do petechiae blanch?
Petechiae are non-blanching pinpoint spots which are less than 3mm in diameter. Purpura are non-blanching, greater than 3mm in diameter, and are sometimes palpable.
How do you say Henoch Schönlein purpura?
Henoch-Schönlein purpura (HEH-nok SHOON-line PURR-pyuh-ruh) is a condition that makes small blood vessels get swollen and irritated.
Does a viral rash blanch?
Rashes that blanch when touched aren’t usually serious. Most rashes are blanching rashes, including virus rashes and allergic reactions.
Can you tell the difference between blanching and non-blanching rashes?
You can see that both the blanching and the non-blanching rash look exactly the same without the glass. Press glass over rash. If it disappears, it is blanching. If you can still see it, it is a non-blanching rash.
How big is a non blanching petechial rash?
Purpura is a non-blanching spot that measures greater than 2 mm. Petechial rashes are a common presentation to the pediatric emergency department (PED). Non-blanching rashes can be a great cause for concern for parents and physicians alike.
What causes a non blanching rash in children?
1 Most common haematological cause of a non-blanching rash 2 Affected children are typically well (with an absence of fever / other signs of infection) 3 Majority present between the ages of 2 – 5yrs 4 60% have a preceding viral infection 5 Petechiae, purpura and bruising are often present in sites of frequent mild trauma
Is it possible for a non blanching rash to be meningococcal?
Children with a non-blanching rash confined to the distribution of the superior vena cava are very unlikely to have meningococcal infection. Measurement of C reactive protein may be helpful—no child with a normal value had meningococcal infection.