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Bruising after a blood draw: What to know

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After a individual has a blood draw, a bruise might seem. Bruising shouldn’t be an unusual prevalence, however it can be uncomfortable.

In this text, we talk about why bruises might seem after a blood draw, when to see a physician, and how to scale back the probability of a bruise occurring.

When a healthcare professional attracts blood, they insert a small, hole needle via the pores and skin to entry a vein. This procedure briefly damages the blood vessel wall and the outermost layer of skin.

Bruising occurs when blood from the damaged vein leaks out and settles underneath the pores and skin.

Some individuals might bruise extra easily than others.

Some causes of straightforward bruising embrace:

According to the World Health Organization (WHO), bruising after a blood draw sometimes heals shortly. However, if the bruise is giant, it might take 2–3 weeks to fade and disappear.

An individual ought to name their physician in the event that they experience any of the next symptoms:

  • the hand turning into discolored
  • numbness or tingling within the arm or hand that does not go away within a few hours
  • worsening redness and inflammation at the puncture website
  • severe ache on the puncture website
  • swelling that worsens as an alternative of enhancing

If a individual is not sure whether or not their symptoms are typical, they need to call a physician or search medical consideration.

A person can take several steps to scale back the prospect of a bruise occurring.

These embrace:

  • Asking for a small needle: The WHO recommend using butterfly or 22-gauge needles for blood attracts within the aged.
  • Applying strain: Apply firm strain to the puncture website after the removing of the needle, and hold the protective bandage on for at the least 6 hours afterward.
  • Avoiding strenuous activity: A person shouldn’t carry heavy objects instantly after a blood draw.
  • Refraining from sporting tight clothes: Tight clothing might forestall the blood from circulating and place additional strain on the veins, leading to a larger bruise.
  • Applying a chilly compress: Doing this may increasingly scale back discomfort.

A bruise might seem to unfold out in form and measurement as it heals. Over time, it might change shade from blue-black to green and then to yellow before fading.

To relieve any discomfort, a individual can attempt:

  • Taking ache relievers: An individual can take acetaminophen, but they should avoid ibuprofen and aspirin for 24 hours after the blood draw.
  • Applying a chilly compress: A chilly compress might assist relieve pain.
  • Remaining hydrated: Drinking plenty of water and consuming a small snack after a blood draw will help a individual keep their power.

Bruising after a blood draw is widespread and not sometimes a trigger for concern. However, if a individual does experience severe discomfort, they should search medical consideration.

Taking some preventive steps, similar to applying strain to the puncture website and refraining from lifting heavy objects, may also help scale back the prospect of a bruise appearing.


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