A mechanically ventilated client develops respiratory alkalosis while on the ventilator. The high-pressure alarm has sounded frequently for this client. The ICU nurse suspects which of the following?
1. The client is on assist control mode.
2. The client is on SIMV mode and the set rate is too low.
3. The client is on pressure support mode.
4. The client is on pressure-controlled setting.
The client is on assist control mode.
Rationale: A frequent problem with assist control mode is stacked breaths, and the client can develop respiratory alkalosis. SIMV mode with a set rate too high may also cause respiratory alkalosis, but this is uncommon. This client is most likely not on pressure support mode or pressure-controlled setting.
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