Activity 3
1. Patient: 2-month old well female infant
- Site of injection:
- Pneumococcal conjugate vaccine (PCV): right anterolateral thigh
- Pentavalent vaccine (Penta): left anterolateral thigh
- Target muscle: Vastus lateralis muscle
- Origin: Greater trochanter and linea aspera of femur
- Insertion: Patella via quadriceps tendon and then tibial tuberosity via patellar ligament
- Action: Extends knee
- Locating the area: Muscle must be divided into thirds, then the injection will be administered into the middle third of the muscle, lateral to the midpoint in the outer anterolateral aspect
- Site of injection:
2. Patient: 65-year-old grandfather
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- Site of injection: Upper arm, around the shoulder
- Target muscle: Deltoid
- Origin: Acromial extremity of clavicle (anterior fibers), acromion of scapula (lateral fibers), and spine of scapula (posterior fibers)
- Insertion: Deltoid tuberosity of humerus
- Action: Lateral fibers abduct arm at shoulder joint; anterior fibers flex and medially rotate arm at shoulder joint; posterior fibers extend and laterally rotate arm at shoulder joint
- Locating the area: Envision an inverted triangle on the patient's arm by placing two fingers down from the acromion process, administer the vaccine in the center of the inverted triangle
References:
The Royal Children’s Hospital Melbourne. (n.d.). Intramuscular injections. https://www.rch.org.au/rchcpg/hospital_clinical_guideline_index/Intramuscular_Injections/
Tortora, G. J., & Derrickson, B. H. (2017). Tortora’s Principles of Anatomy & Physiology. Wiley.