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Author Question: Absorbance or fluorescent sensors are used with which of the following? a. Capnography c. In ... (Read 11 times)

rlane42

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on: Jul 16, 2018
Absorbance or fluorescent sensors are used with which of the following?
 
  a. Capnography c. In vitro blood gas analysis
  b. Photoplethysmog-raphy d. In vivo blood gas analysis

Question 2

Which size of scalp vein needle should be used to draw arterial blood from an infant?
 
  a. 22 gauge c. 26 gauge
  b. 24 gauge d. 28 gauge


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srodz

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Reply #1 on: Jul 16, 2018
Answer to Question 1

ANS: D
In vivo blood gas monitors use optical sensors that are generally categorized in terms of how they modify the initial optical signal; they are classified as either absorbance or fluorescent sensors. Absorbance sensors absorb a fraction of the incident light as it is transmitted down the fiber and through the microcuvette. The amount of light transmitted is proportional to the concentration of the analyte in question. Fluorescent sensors use dyes that fluoresce when they are struck by light in the UV or near-UV visible range. Light from the monitor is transmitted to the microcuvette containing the dye. The concentration of the analyte in question can be measured by determining the ratio of fluorescent light emitted to the original excitation light signal.

Answer to Question 2

ANS: C
For infants, a 25-gauge to 26-gauge scalp vein needle can be used to collect arterial samples.


rlane42

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Reply 2 on: Jul 16, 2018
Excellent

xiaomengxian

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Reply 3 on: Yesterday
Great answer, keep it coming :)

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