Podcast
Questions and Answers
What is the typical angle of insertion for a subcutaneous injection when the patient has less subcutaneous tissue?
What is the typical angle of insertion for a subcutaneous injection when the patient has less subcutaneous tissue?
- 45 degrees (correct)
- 15 degrees
- 90 degrees
- 30 degrees
Which of the following injection routes typically uses a 25-27 gauge needle?
Which of the following injection routes typically uses a 25-27 gauge needle?
- Both Subcutaneous and Intradermal (correct)
- Intradermal
- Subcutaneous
- Intramuscular
What is the primary reason for using the Z-track method during intramuscular injections?
What is the primary reason for using the Z-track method during intramuscular injections?
- To prevent medication leakage into the subcutaneous tissue (correct)
- To minimize pain at the injection site
- To speed up medication absorption
- To ensure the medication reaches the bone
If a patient requires a tuberculin skin test (Mantoux), which injection route and dose volume are most appropriate?
If a patient requires a tuberculin skin test (Mantoux), which injection route and dose volume are most appropriate?
For which type of injection is a 15-degree angle of insertion most appropriate?
For which type of injection is a 15-degree angle of insertion most appropriate?
In which of the following patient populations is the vastus lateralis muscle typically used Site for intramuscular injections?
In which of the following patient populations is the vastus lateralis muscle typically used Site for intramuscular injections?
You are preparing an intramuscular injection for an adult. Considering the common practices, what is the maximum volume you would administer into the deltoid muscle?
You are preparing an intramuscular injection for an adult. Considering the common practices, what is the maximum volume you would administer into the deltoid muscle?
When administering heparin subcutaneously, what precaution should be taken regarding the injection site?
When administering heparin subcutaneously, what precaution should be taken regarding the injection site?
What is the purpose of injecting air into a vial before withdrawing medication?
What is the purpose of injecting air into a vial before withdrawing medication?
What is the recommended order for mixing insulins when combining regular and NPH insulin in one syringe?
What is the recommended order for mixing insulins when combining regular and NPH insulin in one syringe?
Flashcards
Subcutaneous Injection
Subcutaneous Injection
Administered at a 45-90 degree angle. Common medications include Heparin and Insulin.
Intradermal Injection
Intradermal Injection
Administered at a 15-degree angle into the dermis layer. Used for allergy testing and TB skin tests.
Intramuscular Injection
Intramuscular Injection
Administered at a 90-degree angle using the Z-track method to prevent leakage. Common for vaccines and B12 injections.
Z-track Method
Z-track Method
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Dorsogluteal Area
Dorsogluteal Area
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Injection of Air into Vial
Injection of Air into Vial
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Tuberculin Skin Test (Mantoux)
Tuberculin Skin Test (Mantoux)
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Insulin Mixing
Insulin Mixing
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Study Notes
Subcutaneous Injection
- Injection angle can be between 45 and 90 degrees
- A 45-degree angle is advised if there is less subcutaneous tissue
- A 90-degree angle is advised if there is a large amount of subcutaneous tissue
- Usual sites include the abdomen, posterior upper arm, and thigh
- Use a 25-27 gauge needle that is between 1.0 and 1.6 cm long
- Volume should be between 0.5-1 mL and no more than 2 mL
- Medications include Heparin (unit or mL) and insulin (in units)
- Avoid injecting bruised or infected tissue, and rotate the injection site
Intradermal Injection
- Injection is administered into the dermis
- Angle: 15 degrees
- Location: Inner forearm
- Needle Gauge: 25-27 gauge
- Used for allergy testing and TB skin tests
- Administer the medicine slowly to decrease pain
- Volume is usually 0.1 mL
Intramuscular Injection
- Uses a z-track method to prevent the medication from leaking into the subcutaneous tissue and seals the medicine from the muscle
- Administered at a 90-degree angle
- Gauge: 18-25 gauge needle
- Medications: vaccines and B12 injections
- Infants: use the vastus lateralis
- Use a smaller and shorter needle for children
- Maximum dose on the deltoid muscle is 1 mL
Things to remember
- The dorsogluteal area is discouraged due to possible damage to the sciatic nerve
- For the Tuberculin Skin Test (Mantoux), the general dose is 0.1 mL in a 1 mL syringe
Injection of Air on the vial
- It keeps a vacuum from forming so that the medication will flow easily into the syringe, turn the vial upside down and hold it up in the air and make sure that the medicine covers the tip of the needle the entire time.
Insulin Mixing
- When mixing insulin, go from clear to cloudy (Regular insulin to NPH)
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