Any penetrating wound above the navel and below the clavicles should be covered with an occlusive dressing. Any type of waterproof, airtight material can be used as an occlusive dressing but they also require the use of tape. On the ambulance we carry Petroleum gauze and tape for this purpose but there are some drawbacks. They require 2 hands because you have to tear the tape to secure it. Over the years there have been multiple commercial options on the market over the years. Asherman chest seal, the hyfin, Halo, and bolin chest seals and all of these have the advantage of being self adherent. I particularly like the hyfin and Halo seals because they come in 2 packs, one for the exit and one for the entrance wound. The only drawback to these items is the price, and when someone is stocking up multiple IFAKS, medic bags, and stockpiling medical supplies this all adds up quick.
Tegaderms normally come in 2 3/8" x 2 3/4" and are used for securing IV sites IV hub at the angiocath and to protect the site from infection. Tegaderms also come in larger sizes for covering surgical sites for bathing. A box of 50 4" by 4 3/4" tegaderms can be bought for under 30$ on ebay and amazon. These are large enough for 95% of penetrating traumas, they are self adherent and very thin to stash away in a IFAK or the airway part of your medic bag. While most chest seals come with a valve or a flap to release air, PHTLS no longer recommends the old way of taping on 3 sides because if a tension pneumothorax does occur adipose and muscular tissue may be causing the blockage and mere burping the dressing will not alleviate the problem. Just stick on the dressings and if a tension pnuemo does occur just perform a needle decompression.
http://www.amazon.com/Tegaderm-Trans...2XE79E0HBSBZEV
Tegaderms normally come in 2 3/8" x 2 3/4" and are used for securing IV sites IV hub at the angiocath and to protect the site from infection. Tegaderms also come in larger sizes for covering surgical sites for bathing. A box of 50 4" by 4 3/4" tegaderms can be bought for under 30$ on ebay and amazon. These are large enough for 95% of penetrating traumas, they are self adherent and very thin to stash away in a IFAK or the airway part of your medic bag. While most chest seals come with a valve or a flap to release air, PHTLS no longer recommends the old way of taping on 3 sides because if a tension pneumothorax does occur adipose and muscular tissue may be causing the blockage and mere burping the dressing will not alleviate the problem. Just stick on the dressings and if a tension pnuemo does occur just perform a needle decompression.
http://www.amazon.com/Tegaderm-Trans...2XE79E0HBSBZEV