Where is immunoglobulin injected after a tick bite? - briefly
Immunoglobulin is given by intramuscular injection, most commonly into the deltoid muscle of the upper arm. This route ensures rapid absorption and optimal distribution of the antibodies.
Where is immunoglobulin injected after a tick bite? - in detail
After a tick bite that requires passive immunization, the immune globulin is administered in two locations. The first portion is infiltrated directly into and around the bite wound. This local infiltration ensures that antibodies are present at the entry point of the pathogen. The remaining volume is injected into a large, well‑vascularized muscle, most commonly the deltoid of the upper arm. The deltoid provides rapid absorption and allows easy access for health‑care personnel.
Key points for the procedure:
- Wound infiltration: Use a sterile syringe and needle; distribute the antibody evenly throughout the bite tract and surrounding tissue. Avoid excessive pressure that could cause tissue damage.
- Intramuscular injection: Select the deltoid muscle; insert the needle at a 90‑degree angle to the skin, aspirate to confirm no blood return, then inject the remaining antibody slowly. Typical volume does not exceed 5 mL per site to prevent muscle injury.
- Aseptic technique: Disinfect the skin with an appropriate antiseptic, wear gloves, and dispose of sharps in a puncture‑proof container.
- Dosage considerations: Calculate the total dose based on body weight (e.g., 20 IU/kg for rabies immunoglobulin). Split the dose according to the guidelines: at least 20 % of the total volume into the wound, the rest IM.
- Post‑injection monitoring: Observe the patient for immediate adverse reactions such as local swelling, erythema, or systemic signs of hypersensitivity. Document the injection sites and volumes administered.
By following these steps, the immunoglobulin reaches both the site of pathogen entry and the systemic circulation, maximizing protective efficacy after a tick‑related exposure.