Four Hours After Mechanical Ventilation Is Initiated for a Patient

question 13

Multiple Choice

Four hours after mechanical ventilation is initiated for a patient with chronic obstructive pulmonary disease ( COPD ) , the patient's arterial blood gas ( ABG ) results include a pH of 7.50, PaO₂ of 80 mm Hg, PaCO₂ of 29 mm Hg, and HCO₃- of 23 mEq/L ( 23 mmol/L ) . The nurse will anticipate the need to

• A) increase the FIO₂.
• B) decrease the respiratory rate.
• C) increase the tidal volume ( VT ).
• D) leave the ventilator at the current settings.

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Definitions:

Double Blind

A study or experiment setup where neither the participants nor the experimenters know who is receiving a particular treatment, to prevent bias.

Placebo

An inert or innocuous substance typically used as a control in clinical trials to test the efficacy of treatments.

Experimental Drug

A pharmaceutical compound that is in the process of being tested in preclinical or clinical trials to assess its safety and efficacy.

Full Dose

The complete amount of a medication or vaccine that is prescribed to achieve its intended effect.