Admin Table of Contents
- 1 What are the problems encountered in venipuncture?
- 2 How are the complications caused during the venipuncture?
- 3 What are the most common errors in specimen collection?
- 4 What may cause a failure to draw blood?
- 5 When should venipuncture be avoided?
- 6 What causes hematoma in venipuncture?
- 7 Which is the proper technique for performing a venipuncture?
- 8 How to make your veins pop out to give blood?
What are the problems encountered in venipuncture?
Complications that can arise from venepuncture include haematoma forma- tion, nerve damage, pain, haemaconcentration, extra- vasation, iatrogenic anaemia, arterial puncture, pete- chiae, allergies, fear and phobia, infection, syncope and fainting, excessive bleeding, edema and thrombus.
How are the complications caused during the venipuncture?
Venipuncture is also an invasive procedure involving needle puncture. The complications resulting from venipuncture include nerve damage and neuropathic pain, local and systematic infections, vein damage, and hematoma, which may vary in seriousness.
What are the disadvantages of venipuncture?
Skin Puncture or Venipuncture? Pros & Cons, Part 2
| Pros | Cons |
|---|---|
| less likely to be contaminated by tissue fluid | requires greater patient stability |
| less likely to be hemolyzed | multiple venipunctures precipitate iatrogenic anemia |
| difficulty detecting nerve damage in infants |
What is the most common phlebotomy complication?
Hematoma: The most common complication of phlebotomy procedure.
What are the most common errors in specimen collection?
Two of the most common errors that occur during specimen collection and handling are clotting and inaccurate volume. Exposure to temperature extremes may also cause specimens to be rejected for testing.
What may cause a failure to draw blood?
If you have been to a clinic or lab before and had the phlebotomist stick you more than once for a blood draw, you may have been told that you are a “difficult stick.” This can happen to people for quite a few different reasons, including small or deep veins, rolling veins, dehydration, collapsing veins, constricted …
Can venipuncture damage veins?
Medical professionals train so that they can easily and accurately insert a needle into someone’s vein to draw blood or give a drug without damaging the nearby tissue.
What can cause problems in obtaining capillary blood samples?
17-7). Mistakes made in obtaining capillary blood include inadequate warming of the site, which results in inadequate arterialization of the blood; excessive squeezing, which causes contamination with venous blood or interstitial fluid; and exposure of blood to air during collection.
When should venipuncture be avoided?
If the antecubital area of the patient’s arm is compromised or inaccessible, an alternate site must be chosen for venipuncture such as the top of the hand. However, some sites must be avoided due to the risk of complications and/or unnecessary pain to the patient.
What causes hematoma in venipuncture?
If the phlebotomist pushes the needle too far into and through the vein, blood leaks out of that opening and into the surrounding tissue. The appearance of a blue or purple discoloration at the venipuncture site indicates the presence of a hematoma.
What is the most common lab error?
The most common lab errors in the collection of the samples and reporting are: Wrong labeling of the sample. The technique of the blood sample: This is very important to follow an excellent technique to collect good quality blood.
What are some common errors in the lab?
Pre-analytical Error
| Phase of Total Testing Process . | Type of Error . | Rates . |
|---|---|---|
| Pre-analytical | Labeling errors | 46%–68.2% |
| Analytical | Equipment malfunction | 7%–13% |
| Sample mix-ups/interference | ||
| Undetected failure in quality control |
Which is the proper technique for performing a venipuncture?
Label the tube with the patient’s. particulars.
How to make your veins pop out to give blood?
Veins become more visible when blood is forced into them. You can do that by gently massaging the arm, from the wrist to the elbow. After a few minutes, gently tap the site of the puncture with your fingers to make the vein pop out.
What causes difficulty drawing blood?
Many people’s blood pressure goes up just going to the doctor for a routine checkup, so it is understandable that it rises when we go to the doctor or lab because we are sick. Stress increases the blood pressure and constricts the veins, making it more difficult to draw blood.