Question 8 of 20

Correct!

A hematoma produced from a PSA injection is due to inserting the needle too far posteriorly into the pterygoid plexus of veins. Perforation of the maxillary artery may also occur.

To minimize the chance of this occurring, be certain to use a short needle. Also, remember to insert the needle at the height of the mucobuccal fold above the maxillary second molar and advance slowly in an upward, inward and backward direction.