TL;DR
Injection Techniques: Parenteral routes: intradermal (15°), subcutaneous (45°), intramuscular (90°) with specific site selection.
Injection Techniques
Definition
Parenteral routes: intradermal (15°), subcutaneous (45°), intramuscular (90°) with specific site selection.
Troubleshooting
When injection techniques does not go as expected, systematically review each step of the procedure. Check equipment calibration, verify technique, and repeat the measurement if results seem inconsistent with the clinical picture. Report discrepancies to the supervisor rather than guessing at the correct value.
Equipment & Tools
Parenteral routes: intradermal (15°), subcutaneous (45°), intramuscular (90°) with specific site selection. Injection technique, needle selection, and Z-track tested on MA exam.
Clinical connection: Respirations technique involves Count without patient awareness (keep fingers on wrist), observe chest rise, count 30 sec x 2 or 60 .
Workplace Applications
Workplace application of injection techniques requires fluency in medical terminology:
| Prefix | Meaning |
|---|---|
| hyper- | above/excessive |
| hypo- | below/deficient |
| tachy- | fast |
| poly- | many |
| Suffix | Meaning |
|---|---|
| -penia | deficiency |
| -osis | abnormal condition |
| -ectomy | surgical removal |
| -otomy | incision into |
Key Values & Ranges
Lipid panel:
- Total cholesterol: under 200 mg/dL desirable
- LDL: under 100 mg/dL optimal
- HDL: over 40 mg/dL (M), over 50 mg/dL (F)
- Triglycerides: under 150 mg/dL
Urinalysis:
- pH: 4.5-8.0
- Specific gravity: 1.005-1.030
- Protein: negative
- Glucose: negative
- WBC: 0-5/HPF
- RBC: 0-3/HPF
- Bacteria: negative
Assessment Techniques
Respirations: Count without patient awareness (keep fingers on wrist), observe chest rise, count 30 sec x 2 or 60 sec if irregular. Normal: Normal adult: 12-20/min. Tachypnea over 20, bradypnea under 12.
Pulse: Radial (most common), count 60 sec if irregular. Apical: left MCL, 5th ICS, count 60 sec. Pulse deficit: apical minus radial.. Normal: Normal adult: 60-100 bpm. Tachycardia over 100, bradycardia under 60.
Why It Matters
Injection technique, needle selection, and Z-track tested on MA exam.
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