NHA Phlebotomy Certification Practice Exam

Which of the following is a common reason for using a skin puncture instead of venipuncture?

1. To obtain a larger volume of blood

2. For patients with difficult veins

3. When a hemostatic agent is required

4. When arterial blood is needed

The correct answer is: For patients with difficult veins

Using a skin puncture is especially beneficial for patients with difficult veins. In cases where the veins are small, shallow, or prone to collapse, it can be challenging to successfully perform a venipuncture. Skin puncture allows for blood collection without the need to search extensively for a suitable vein, making it a less invasive, quicker, and more accessible method for obtaining blood samples. This method is particularly advantageous for populations such as infants, young children, or individuals with certain medical conditions that affect vascular access. By utilizing a skin puncture technique, healthcare providers can ensure a more comfortable experience for the patient while still being able to collect the necessary blood for testing. Thus, using a skin puncture is a viable solution in situations where venipuncture is not practical or feasible.