1) It is immunization day at the health center. The first patient is a 2-month old well female infant who is scheduled for the following vaccinations: pneumococcal conjugate vaccine (PCV), pentavalent vaccine (Penta) and oral polio vaccine. PCV and Penta are given via intramuscular route. Where are the sites of injection? What muscle is targeted in the injection? Write down its origin, insertion and action. How do you locate this area?
The pneumococcal conjugate vaccine injection site is in the anterolateral region of the left thigh, while the pentavalent vaccine injection site is in the right upper, outer thigh. The vastus lateralis is the muscle that is being worked on. It begins in the greater trochanter, the femoral linea aspera, and the intertrochanteric line. The insertion sites are in the patella and tibial tuberosity. Extending the leg at the knee joint and extending the leg are part of the motion. It can be located by locating the top border of the vastus lateralis, the bottom border above the knee. The side borders are from the mid anterior to mid lateral of the thigh, where the center of the injection site is.
2) The baby’s 65-year-old grandfather also came to the center because influenza vaccine is being offered to senior citizens. The flu vaccine is given intramuscularly. Which muscle is the preferred site for IM injection in this case? Write down its origin, insertion and action. How do you locate this area?
The flu vaccine for adults is best administered via the deltoid muscle. The lateral and posterior fibers originate in the clavicle's acromial extremity, the spine, and the acromion of the spatula. The insertion area is in the humerus deltoid tuberosity. The action includes lateral internal rotation and flexing of the arm. It also extends the arm's external rotation. It can be found by just feeling the bone at the top of the arm. The injection site should be a broad rounded triangular form on the top of the humerus, scapula, and clavicle.
References:
Tortora, G. J., & Derrickson, B. H. (2018). Principles of anatomy and physiology. John Wiley & Sons.