11.3 Oral & Parenteral Routes, Sites & Equipment

Routes Overview (What the Blueprint Tests)

After rights and math, CMAC tests how you give the drug. Blueprint cluster:

• 3.06.5 Oral medications
• 3.06.6 Sites and equipment (needle length and gauge) for parenteral meds excluding IV
• 3.06.7 Parenteral methods: SQ, IM, ID, and inhalation
• 3.06.9 Dispose of parenteral equipment correctly

Parenteral here means routes that bypass the GI tract via injection or inhalation devices as listed—not starting peripheral IVs (outside this task wording).

3.06.5 — Administering Oral Medications

Forms and Special Rules

Oral Administration Steps

1. Apply seven rights; check swallow status, NPO status, and nausea.
2. Prepare dose; don gloves if handling the tablet is required by policy or patient contact risk.
3. Position patient upright (Fowler’s when possible).
4. Offer water; observe the patient take the medication.
5. Recheck that the dose was swallowed (not cheeked) when risk warrants.
6. Document; monitor for adverse effects as indicated.

Do not crush list mentality: If crushing is needed for a feeding tube or dysphagia, obtain the correct order/formulation—many long-acting cardiac and pain meds become dangerous if crushed.

3.06.6–3.06.7 — Parenteral Sites, Needles, and Techniques

Needle Basics

• Gauge: larger number = thinner needle (25 G is thinner than 21 G).
• Length: must reach the intended tissue without hitting bone or depositing IM drug into fat unintentionally.
• Syringe: choose the smallest syringe that holds the dose for accuracy (e.g., 1 mL tuberculin for ID).

Site / Route Equipment Table (Classic Teaching Ranges)

Ranges vary slightly by textbook and body habitus—know the typical ambulatory care set below and adjust per facility protocol and patient size.

Intradermal (ID) Technique

1. Select site (usually volar forearm for TB testing), cleanse, allow dry.
2. Stretch skin; insert bevel up at 10–15° until bevel is covered.
3. Inject slowly to raise a small wheal/bleb.
4. Do not massage TB tests; instruct patient on reading window (e.g., 48–72 hours for TST).
5. Document lot, site, and time as required.

If no wheal appears, the dose may have gone SQ—follow protocol for repeating (especially TB testing).

Subcutaneous (SQ) Technique

1. Rotate sites for repeated injections (insulin, heparin products).
2. Pinch skin fold as taught for needle length/angle.
3. Insert quickly at 45° or 90° per technique; inject steadily.
4. For heparin/enoxaparin-type products, follow product rules (often no aspiration; sometimes do not rub).
5. Activate safety needle; sharps disposal immediately.

Abdomen often preferred for consistent insulin absorption; avoid scarred, inflamed, or lipohypertrophic areas.

Intramuscular (IM) Technique

1. Landmark carefully—never “eyeball” the buttock without anatomy.
2. Cleanse; insert at 90° with a dart-like motion.
3. Aspiration policies vary by medication and current guidance (many vaccines: no aspiration); follow current facility protocol and product instructions.
4. Inject slowly; withdraw; apply gentle pressure; do not massage depot medications if contraindicated.
5. Use Z-track for irritating IM medications when ordered/taught: pull skin laterally, inject, withdraw, release skin to seal path.

Deltoid Landmark (Vaccines & Many Adult IM Meds)

1. Expose shoulder; find acromion process.
2. Place 2–3 fingers below acromion; inject into the dense muscle below, above the axillary fold—avoid too high (shoulder injury) or too low (axilla).
3. Seat patient; support arm.

Inhalation Technique (Task Includes “by inhalation”)

For clinic-administered nebulizer treatments, verify order, patient ID, pre/post assessment per protocol (e.g., peak flow/SpO₂ if used), and document.

Volume and Site Decision Logic

If the ordered volume exceeds site capacity, clarify—do not split randomly without an order.

3.06.9 — Dispose of Parenteral Equipment Correctly

Sharps Safety Non-Negotiables

1. Immediately after injection, activate engineered safety device if present, pointing away from you and the patient.
2. Place needle/syringe unit into a puncture-resistant, labeled sharps container at the point of use.
3. Do not bend, break, or remove needles from syringes by hand routinely.
4. Do not recap contaminated needles using two hands; if recapping is unavoidable in a rare protocol situation, use a one-handed scoop—prefer safety devices that eliminate recapping.
5. Replace sharps containers at the fill line (often ¾ full)—never overstuff.
6. Sharps containers go in regulated medical waste streams per OSHA/facility rules—not regular trash.
7. Report needlestick injuries immediately (wash, notify, occupational health protocol).

Other Parenteral Waste

• Empty vials and ampoules: sharps or pharma waste per policy (ampoule glass is sharps).
• Controlled-substance residual: waste with witness and documentation when required (Section 11.1).
• Bloody gauze: biohazard bag if saturated per policy; sharps never in biohazard bags soft-sided only.

End-to-End Parenteral Checklist

1. Order + seven rights + calculation.
2. Hand hygiene; assemble syringe/needle/alcohol/gloves/band-aid/sharps container.
3. Draw up using aseptic vial technique (alcohol hub, correct air injection for vials as taught, filter needle for ampoules if required).
4. Change to appropriate administration needle if a blunt fill needle was used.
5. Position patient; landmark; cleanse; inject at correct angle.
6. Safety engage; sharps container immediately.
7. Document med, dose, route, site, time, lot/expiration when required, tolerance.
8. Observe for adverse reaction per protocol (especially first-dose antibiotics and vaccines—Section 11.4).

CMAC Exam Traps for Tasks 3.06.5–3.06.7 & 3.06.9

1. Crushing an XR tablet for convenience.
2. Using a 1½-inch needle for a thin adult deltoid without assessing (or using a tiny needle that deposits IM drug in fat).
3. ID injection at 90° with no wheal for a TB test.
4. Choosing dorsogluteal as the “always best” adult IM site.
5. Recapping a used needle with two hands and carrying it across the clinic.
6. Giving oral meds to a semi-conscious patient lying flat.
7. Massaging after ID TB testing.

Memory anchors: oral upright + don’t crush XR/EC; ID 10–15° wheal; SQ 45/90; IM 90° with landmarks; thinner = higher gauge; sharps in at once.