Monitoring and Equipment

Study guide

What you watch, what you watch it with, and what must be ready before the list starts. Pulse oximetry carries the largest block of questions, and the rest divides between direct clinical observation and the equipment the surgery must have to hand.

Pulse oximetry

The single most examined item in the topic.

• A pulse oximeter measures oxygen saturation and pulse rate — knowing precisely what it does and does not measure is examinable.
• Readings can be unreliable for identifiable reasons, and questions describe those situations.
• The oximeter supplements clinical observation rather than replacing it, which is a stated principle and a question in its own right.

Clinical monitoring and observation

The nurse’s own observation, which the equipment supports.

• Level of consciousness, responsiveness, colour and breathing are observed continuously and are examined as a set.
• Blood pressure measurement has its own technique points and its own place in the sequence.
• Recognising a complication early is examined as a distinct skill from managing one.

The inhalation sedation machine

A specific machine with named components and named safety features.

• Components have defined functions and form their own extended matching set.
• Safety features exist to prevent a hypoxic mixture being delivered; know which feature prevents which failure.
• Scavenging addresses occupational exposure to nitrous oxide rather than patient safety.

Chairside items, airway and oxygen equipment

What must be present and checked, examined as lists you match against.

• Intravenous sedation requires specific chairside items to be available — the extended matching set asks you to identify them.
• Airway and oxygen delivery equipment has named components matched to their use.
• Equipment checks happen before the session; questions about "what should have been done" usually point back to this.

In the exam Pulse oximetry deserves disproportionate revision time — know what it measures, when it misleads, and why it does not replace looking at the patient. For the equipment blocks, learn the lists as matched pairs of item and purpose, since that is the form the extended matching questions take.