Final answer:
All conditions mentioned - infection, scar tissue, and edematous tissue - disqualify a site for capillary puncture, as they can lead to test complications or inaccuracy.
Step-by-step explanation:
Conditions that disqualify a site for capillary puncture include: infection at the puncture site, scar tissue at the puncture site, and edematous tissue at the puncture site. Therefore, the answer to which of the following conditions disqualifies a site for capillary puncture is 4) All of the above.This includes infection at the puncture site, scar tissue at the puncture site, and edematous tissue at the puncture site. These conditions can interfere with the accuracy of the blood sample and pose a risk of further complications.
Infections can spread more easily and cause complications, scar tissue can interfere with the test results, and edema can dilute the sample, making it less accurate.