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Doctors Medicines MCQs Q&A

When a drug is given through the layers of the skin into the areolar tissue, it is known as

When a drug is given through the layers of the skin into the areolar tissue, it is known as Correct Answer Subcutaneous administration

Concept:-

  • Subcutaneous administration is given into the adipose tissue and areolar connective layer below the epidermis and dermis.
  • The absorption is slow because of the few blood vessels.
  • The sites of subcutaneous injection:
    • the outer aspect of the upper arm
    • the abdomen
    • anterior thigh
    • upper back
    • dorsogluteal site

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Explanation:-

  • The site should be avoided, if:
    • bruised
    • tender
    • hard
    • swollen
    • inflamed or scarred.
  • The above conditions reduce absorption and comfort.
  • The subcutaneous injection on the abdomen has the fastest rate of absorption in comparison to the other sites.
  • A 25- to 30-gauge, 3/8" to 1" needle can be used.
  • A maximum of 1 mL solution is administered.
    • Enoxaparin is an example of a subcutaneous drug.
  • The angle of administration: 45- to 90-degree.
  • Aspiration is contraindicated in the case of heparin as it may lead to hematoma.
  • Massaging the site is not necessary.

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