CONO Clinical Sciences study materials
CONO Clinical Sciences study resources

CONO Clinical Sciences: Clinical Procedures and Interventions

CONO Clinical Sciences · Work through your exam, one topic at a time.

All guide sections

Clinical Procedures and Interventions

Preparation and Technique

Procedure questions test preparation, indication, contraindication, technique, and post-procedure care. Candidates should understand informed consent, site verification, aseptic technique, local anesthesia, and universal precautions. Know the layers crossed in common procedures (for example, skin, subcutaneous tissue, muscle for intramuscular injection), the rationale for landmarking, and how to confirm successful placement. Understand sterile field maintenance, sharps safety, and specimen handling to avoid contamination or mislabeling.

Complications and Aftercare

Know the major complications of common interventions: bleeding, infection, hematoma, pneumothorax with central venous access, and nerve injury with poorly placed injections. Understand when to use ultrasound guidance and when it adds little. Post-procedure care includes monitoring for complications, wound care instructions, documentation, and a plan for follow-up and results communication.

Traps

Frequent traps include choosing a procedure when a less invasive option suffices, ignoring coagulopathy or anticoagulation before an invasive procedure, skipping consent documentation, and forgetting to confirm that the correct site and side were marked. Another trap is confusing the indication for a diagnostic tap with that for a therapeutic drainage.

Worked Example

Rule of thumb: before any invasive bedside procedure, run a checklist of indication, consent, coagulation status, allergy to anesthetic, site marking, aseptic supplies, and post-procedure monitoring. For a joint aspiration, the fluid should be sent for cell count, crystals, Gram stain and culture; sending only culture misses crystal disease and underdiagnoses septic arthritis.