Medical Procedures & Techniques Flashcards

When performing a 12-lead ECG, which electrode placement is used for lead V4?

Answer: 5th intercostal space, left midclavicular line

V4 is placed at the 5th intercostal space at the left midclavicular line.

Which needle gauge is most appropriate for a routine venipuncture in an adult with average veins?

Answer: 21 gauge

A 21-gauge needle is the standard choice for routine adult venipuncture, balancing flow rate and patient comfort.

What is the correct sequence for applying a sterile dressing to a wound?

Answer: Cleanse wound, apply sterile pad, secure with tape

The wound must be cleansed first, then the sterile pad is applied, and finally tape secures the dressing.

During urinary catheterization, which principle must be strictly maintained throughout the procedure?

Answer: Surgical aseptic technique

Urinary catheterization requires strict surgical aseptic technique to prevent introduction of pathogens into the sterile urinary tract.

A patient requires a nasogastric tube insertion. After insertion, what is the priority action before use?

Answer: Verify placement by checking gastric pH or X-ray

Confirming NG tube placement via gastric pH testing or chest X-ray is mandatory before any use to prevent aspiration.

Which site is preferred for an intramuscular injection when administering a large volume (3 mL) in an adult?

Answer: Ventrogluteal

The ventrogluteal site is preferred for large-volume IM injections in adults because it has a large muscle mass and few major vessels or nerves.

When collecting a midstream clean-catch urine specimen from a female patient, what is the correct order of steps?

Answer: Cleanse labia front to back, begin voiding, collect midstream

The labia must be cleansed front to back first, then the patient voids, and the midstream urine is collected into the sterile cup.