Needle Sizes and Injection Angles

Questions and Answers

Subcutaneous injection angles are typically at _____ degrees.

45-90

What is the usual range of subcutaneous doses?

0.5 to 1 mL

What are the sizes of needles used for subcutaneous injections?

25 gauge, 1/2 to 5/8 inch

Intramuscular injection angles are typically at _____ degrees.

90 Signup and view all the answers

What is the recommended dose of IM injections for adults?

3 mL Signup and view all the answers

What are the needle sizes for IM injections?

22-27 gauge for aqueous meds, 18-25 gauge for oil-based meds Signup and view all the answers

Intradermal injection angles are typically at _____ degrees.

5-15 Signup and view all the answers

What is the typical dose for intradermal injections?

0.01-0.1 mL Signup and view all the answers

What are the needle sizes for intradermal injections?

25-27 gauge, 3/8-5/8 inch Signup and view all the answers

What is the airlock technique in injections?

0.2 mL of air subcutaneous Signup and view all the answers

What are insulin syringes used for?

To administer insulin only Signup and view all the answers

Where are common subcutaneous injection sites?

Back of arms, back near shoulder blades, top of buttocks, stomach, thighs Signup and view all the answers

What are the preferred intramuscular injection sites?

Vastus lateralis for infants, ventral gluteal for adults and children Signup and view all the answers

What is the Z-track method in injections?

Pull skin taught, inject at 90 degrees, wait 10 seconds, withdraw needle, release skin Signup and view all the answers

How should eye drops be administered?

Put in conjunctival sac, apply pressure for 30-60 seconds Signup and view all the answers

How should eye ointment be applied?

Apply an even strip of medication to the border of conjunctival sac Signup and view all the answers

What is the correct method for administering ear drops for adults?

Pinna up and back Signup and view all the answers

How should MD inhalers be used?

Place 1-2 inches from mouth, breathe out, press down, inhale, hold for 10 seconds Signup and view all the answers

Study Notes

Subcutaneous Injections

Injection angles: 45-90 degrees; 45 degrees for thin adults/children, 90 degrees for average patients.
Typical doses: 0.5 to 1 mL.
Needle sizes: 25 gauge; lengths of 1/2 to 5/8 inch.

Intramuscular Injections

Injection angle: 90 degrees.
Doses: 3 mL for adults, 1 mL for children.
Needle sizes:
- 22-27 gauge for aqueous medications,
- 18-25 gauge for oil-based medications,
- 5/8-1 inch for children,
- 1-1.5 inches for adults.

Intradermal Injections

Injection angle: 5-15 degrees.
Doses: 0.01-0.1 mL.
Needle sizes: Tuberculin or 1-mL syringes, 25-27 gauge, lengths of 3/8-5/8 inch.

Airlock Technique

Involves injecting 0.2 mL of air subcutaneously to prevent leakage of medication.

Insulin Syringes

Designed exclusively for insulin; standard 1 mL syringe calibrated for 100 units, 0.5 mL low-dose syringe for 50 units.

Subcutaneous Injection Sites

Common sites: Back of arms, back near shoulder blades, mid-back, top of buttocks, abdomen, and thighs.

Preferred Intramuscular Injection Sites

Vastus Lateralis for infants and Ventral Gluteal for adults and children.

Z-track Method

Skin is pulled taut, injection at 90 degrees, wait 10 seconds before withdrawing needle, then release skin to seal medication in.

Eye Drops Administration

Administer drops in the conjunctival sac, apply pressure for 30-60 seconds to minimize systemic absorption, wait several minutes between different drops.

Eye Ointment Application

Evenly apply a strip of ointment along the inner to outer canthus of the conjunctival sac.

Ear Drops Administration

Adults: pull pinna up and back; children: pull pinna down and back.
Have the patient lie on their side for 5-10 minutes, wait between administrations.

Metered Dose Inhalers (MDIs)

Hold inhaler 1-2 inches from the mouth, instruct the patient to breathe out, press down to release medication while inhaling, hold breath for 10 seconds, and exhale through pursed lips.
Wait 1-2 minutes between puffs and 2-5 minutes between different medications.

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Description

Explore key concepts related to needle sizes and injection angles. This quiz covers various injection methods, including subcutaneous and intramuscular techniques, along with appropriate dosages and needle specifications. Perfect for those studying nursing or medical fields.