Electrocardiogram (EKG/ECG)

Step-by-Step Procedure

Procedure: Temperature measurement (relevant to electrocardiogram (ekg/ecg)).

Technique: Oral (under tongue, lips closed, 3-5 min), tympanic (pull ear up and back for adults), temporal (across forehead)

Normal values: Oral: 97.8-99.1 F. Rectal: +1 F. Axillary: -1 F. Tympanic: close to core.

Historical Context

Standards for electrocardiogram (ekg/ecg) have evolved over decades of clinical research and regulatory development. Current evidence-based guidelines reflect lessons learned from adverse events, clinical trials, and quality improvement initiatives. Staying current with guideline updates is part of professional continuing education requirements.

Key Values & Ranges

CBC:

• WBC: 4,500-11,000/uL
• RBC: 4.2-5.9 million/uL
• Hemoglobin: 12-16 g/dL (F), 14-18 g/dL (M)
• Hematocrit: 37-47% (F), 42-52% (M)
• Platelets: 150,000-400,000/uL

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

Safety Considerations

Safety considerations for electrocardiogram (ekg/ecg) in the medical office include proper technique and universal precautions.

Subcutaneous injections: angle 45 degrees (or 90 with short needle/obese), sites include Upper arm (posterior), Abdomen (2 inches from umbilicus), Anterior thigh. Maximum volume: 0.5-1.0 mL. Needle: 25-27G, 5/8 inch.

Overview

Non-invasive recording of heart electrical activity showing P waves, QRS complexes, and T waves. Lead placement, artifact identification, and basic rhythms tested on MA exam.

Clinical connection: Pulse technique involves Radial (most common), count 60 sec if irregular. Apical: left MCL, 5th ICS, count 60 sec. Pulse defi.