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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PCV |
PENTA |
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Sites of Injection |
anterolateral part of the left thigh |
right outer upper thigh |
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Muscle Targeted in the Injection: Vastus Lateralis |
Origin: intertrochanteric line, greater trochanter, gluteal tuberosity, linea aspera of femur Insertion: Tibial tuberosity (via patellar ligament), patella, (lateral condyle of tibia) Action: knee joint: leg extension |
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How do you locate this area? |
First, you have to locate the greater trochanter of the femur. The top border of the vastus lateralis can be found a hand width below the groin. The bottom border of this muscle can be found a hand above the knee. The side borders are from the mid anterior thigh to the mid-lateral thigh. |
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References:
Vaskovic, J. (2022, July 22). Vastus lateralis. Kenhub. https://www.kenhub.com/en/library/anatomy/the-quadriceps-femoris-mus
Ebraheim, N. (2018). Vastus Lateralis Intramuscular Injection - Everything You Need To Know - Dr. Nabil Ebraheim [YouTube Video]. In YouTube. https://www.youtube.com/watch?v=XFog6uSwbuw
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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Influenza Vaccine |
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Site of Injection |
Upper Arm |
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Muscle Targeted in the Injection: Deltoid Muscle |
Origin: Lateral ⅓ of Clavicle (clavicular part), Acromion (acromial part), spine of scapula (spinal part) Insertion: deltoid tuberosity of humerus Action: flexion and internal rotation of the arm, abduction of the arm beyond the initial 15 degrees, and extension and external rotation of the arm |
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How do you locate this area? |
This muscle has a large rounded triangular shape on the outside of the upper arm, on top of the humerus, the clavicle and the scapula. |
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References:
Pirie, E. (2022, July 27). Deltoid Muscle. Kenhub. https://www.kenhub.com/en/library/anatomy/the-deltoid-muscle
Department of Health and Aged Care (n.d.). Figure. Anatomical markers used to identify the deltoid injection site. Australian Immunisation Handbook. https://immunisationhandbook.health.gov.au/resources/figures/figure-anatomical-markers-used-to-identify-the-deltoid-injection-site