ACTIVITY 3
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?
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The preferred site for a 2-month-old infant is the middle of the anterolateral thigh, specifically the vastus lateralis thigh muscle. This is the junction of the upper and middle thirds of this muscle. It originates from various locations on the femur, including the proximal half of the intertrochanteric line, the anterior and inferior borders of the greater trochanter, the lateral lip of the gluteal tuberosity, and the proximal half of the lateral lip of linea aspera. The muscle descends through the lateral part of the anterior thigh compartment and inserts into the patella via the quadriceps tendon. Its action involves extending and stabilizing the knee.
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?
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The preferred IM site for the influenza vaccine on a 65-year-old is on the shoulder, mainly on the deltoid muscle. This muscle originates from the anterior lateral third of the clavicle and the lateral portion of the acromion process. Also, it inserts into the humeral tuberosity on the lateral humerus. It aids in the movement and stabilization of the shoulder joints. It is also the shoulder joint's primary abductor.