A patient is admitted with carbon monoxide poisoning. Which of the following assessments is unreliable? a....
A patient is admitted with carbon monoxide poisoning. Which of the following assessments is unreliable?
|
a. Arterial blood pressure |
|
b. Blood glucose level |
|
c. Carboxyhemoglobin level |
|
d. Pulse oximetry reading |
Homework Answers
Blood glucose levels and arterial blood pressure cannot detect blood levels of CO (Carbon monoxide), So its not a diagnostic examination for CO poisoning.
Assessing Carboxyhemoglobin level in the blood is the confirmatory diagnosis for CO poisoning because it detects the level of CO attached to Hemoglobin since CO has greater affinity to Hb than oxygen.
Pulse oximetry reading is unreliable. It detects only oxygen saturation and cannot find the difference between normal Hb and carboxyhemoglobin and it will give a falsely increased oxyhemoglobin level. So d. Pulse oximetry reading is an unreliable assessment for carbon monoxide poisoning
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