CNOR Patient Positioning and Physiological Monitoring 2

Question 1

When using a fracture table for a hip procedure, the well-leg stirrup must be positioned to avoid pressure on which structure?

Accepted Answer

Saphenous nerve at the medial knee

Answer

Femoral vein

Answer

Obturator nerve

Answer

Popliteal artery

Question 2

Bispectral Index (BIS) monitoring in the perioperative setting is used primarily to:

Accepted Answer

Assess the depth of anesthesia and reduce awareness

Answer

Measure neuromuscular blockade recovery

Answer

Monitor cerebral oxygenation during carotid procedures

Answer

Detect intraoperative seizure activity

Question 3

A patient in the supine position develops hypotension shortly after positioning. The anesthesia provider suspects aortocaval compression. This is MOST likely in which patient population?

Accepted Answer

Pregnant patients beyond 20 weeks gestation

Answer

Obese male patients undergoing abdominal surgery

Answer

Elderly patients with pre-existing hypertension

Answer

Pediatric patients under 10 kg

Question 4

During intraoperative neurophysiological monitoring (IONM) for a spinal procedure, a significant loss of motor evoked potentials (MEPs) is noted. The FIRST priority of the scrub nurse should be to:

Accepted Answer

Alert the surgeon and pause or modify the surgical maneuver

Answer

Immediately increase the patient's blood pressure with vasopressors

Answer

Reposition the patient to relieve spinal cord pressure

Answer

Increase the neuromuscular blockade reversal dose

Question 5

Compartment syndrome can occur as a complication of which surgical position when procedures are prolonged?

Accepted Answer

Lithotomy with legs elevated in stirrups

Answer

Supine with arms tucked

Answer

Prone with chest rolls

Answer

Reverse Trendelenburg with shoulder braces

Question 6

A patient's peripheral oxygen saturation (SpO2) reading is consistently 2–3% lower on the right hand compared to the left hand. The anesthesia provider is concerned about which condition?

Accepted Answer

Right subclavian artery compression or thoracic outlet issue

Answer

Carbon monoxide poisoning affecting both readings

Answer

Peripheral vascular disease in the lower extremities

Answer

Artifact from the surgical warming blanket

Question 7

Which layer of padding is recommended FIRST when protecting bony prominences from pressure injury during surgery?

Accepted Answer

Soft absorbent material (e.g., cotton batting or foam) directly against the skin

Answer

Foam padding directly applied to skin

Answer

A layer of egg-crate foam over a gel pad

Answer

Adhesive hydrocolloid dressing applied before foam