The palmar surface of the fingertip (fleshy pad) of the middle (3) or ring (4) finger is usually selected for puncture for a variety of reasons. The fingertips of these fingers are usually less calloused, have fleshier pads and cause less discomfort for the patient. Show The thumb (1) is to be avoided because it has a pulse. The index finger (2) tends to be more calloused, which would make collection of the specimen more difficult. This area is also more sensitive for the patient. The pinky finger (5) does not have sufficient tissue depth to prevent injury. When performing a fingerstick, the phlebotomist should puncture either side of the fleshy pad of the middle or ring finger, but not the extreme side of the finger. The exact center of the fleshy pad or the tip of either finger should also be avoided. Avoid areas of the finger that are cold, swollen, inflamed, calloused or cyanotic. The bottom image indicates the correct area to use for skin puncture. When performing a capillary puncture the puncture should be made slightly?7.1.
A lancet slightly shorter than the estimated depth needed should be used because the pressure compresses the skin; thus, the puncture depth will be slightly deeper than the lancet length.
When performing a capillary puncture you should?Hold the finger in an upward position and lance the palm-side surface of the finger with proper-size lancet (adult/child). Press firmly on the finger when making the puncture. Doing so will help you to obtain the amount of blood you need. Cap the Microtainer® and gently invert it 10 times to prevent clots from forming.
When performing a capillary puncture on the fingertips the phlebotomist should?This area is also more sensitive for the patient. The pinky finger (5) does not have sufficient tissue depth to prevent injury. When performing a fingerstick, the phlebotomist should puncture either side of the fleshy pad of the middle or ring finger, but not the extreme side of the finger.
Which of the following is a proper site for a capillary puncture?But what is an appropriate site? Finger - Usually the third or fourth finger is preferred in adults and children. The thumb has a pulse and is likely to bleed excessively. The index finger can be calloused or sensitive and the little finger does not have enough tissue to prevent hitting the bone with the lancet.
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When performing a capillary puncture should be made slightly off center from the fleshy part of the fingertip?
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