Where is the injection for a tick bite given? - briefly
The prophylactic injection after a tick bite is administered intramuscularly in the deltoid muscle of the upper arm. Subsequent doses are given in the same site.
Where is the injection for a tick bite given? - in detail
The prophylactic medication administered after a tick attachment is most often delivered intramuscularly. The preferred location is the deltoid region of the upper arm because it provides easy access, minimal risk of nerve injury, and reliable absorption. When a larger volume is required, the ventrogluteal site serves as an alternative.
Deltoid administration
- Identify the acromion process and draw an imaginary line to the deltoid tuberosity.
- Place the injection point approximately 2–3 cm below this line, in the thickest part of the muscle.
- Use a 25‑25 mm needle for adults; a shorter 16‑20 mm needle may be used for children.
- Insert the needle at a 90° angle, aspirate briefly, then inject the dose steadily.
Ventrogluteal administration (if deltoid is unsuitable)
- Locate the anterior superior iliac spine (ASIS) and the greater trochanter.
- Place the heel of the hand on the greater trochanter, fingers pointing toward the ASIS, and spread the index and middle fingers toward the iliac crest to form a V.
- The injection site is the center of the V.
- Use a 38‑45 mm needle for adults; a 25‑30 mm needle for children.
- Insert at a 90° angle, aspirate, and deliver the medication.
Key considerations:
- Verify that the patient’s tetanus immunization status is up‑to‑date; administer tetanus toxoid in the same muscle if indicated.
- Observe for immediate adverse reactions for at least 15 minutes after injection.
- Document the site, drug, dose, and time of administration in the medical record.
These guidelines ensure that the prophylactic injection following a tick exposure is placed safely and effectively, maximizing drug bioavailability while minimizing complications.