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Injection site reactions (ISRs) are reactions that occur at the site of injection of a drug. They may be mild or severe and may or may not require medical intervention. Some reactions may appear immediately after injection, and some may be delayed. [1] Such reactions can occur with subcutaneous, intramuscular, or intravenous administration.
So, if you bruise often, it means those capillaries are extra fragile—a vulnerability primarily caused by aging; medications including steroids, blood thinners, and over-the-counter pain killers ...
Bruise colors vary from red, blue, or almost black, depending on the severity of broken capillaries or blood vessels within the bruise site. Broken venules or arterioles often result in a deep blue or dark red bruise, respectively. Darker colored bruises may result from a more severe bleeding from both blood vessels.
Subcutaneous injection sites. Commonly used injection sites include: [3]: 723 The outer area of the upper arm. The abdomen, avoiding a 2-inch circle around the navel. The front of the thigh, between 4 inches from the top of the thigh and 4 inches above the knee. The upper back. The upper area of the buttock, just behind the hip bone.
Overall, side effects from a half-strength third dose of Moderna's vaccine were similar to a second dose. Younger people recorded more side effects.
The injection site must be cleaned before administering the injection, and the injection is then administered in a fast, darting motion to decrease the discomfort to the individual. The volume to be injected in the muscle is usually limited to 2–5 milliliters, depending on injection site. A site with signs of infection or muscle atrophy ...
The sites where skin popping with cocaine has been performed have an area of central pallor surrounded by bruising . This pattern is due to the vasoconstrictive properties of cocaine acting locally at the injection site with hemorrhage occurring in the surrounding tissue.
Over time, the body absorbs (or “dissolves”) dermal fillers. Side effects can include bruising, redness, swelling, and pain. You can treat those side effects by icing or applying an arnica salve.