Fluid & Electrolyte Q 53 - Gyan Darpan : Learning Portal
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Tuesday 29 March 2022

Fluid & Electrolyte Q 53

To determine if a patient’s respiratory system is functioning, the nurse would assess which of the following parameters:
    A. Respiratory rate
    B. Pulse
    C. Arterial blood gas
    D. Pulse oximetry

Correct Answer: C. Arterial blood gas

Arterial blood gases will indicate CO2 and O2 levels. This is an indication that the respiratory system is functioning. Blood gas analysis is a commonly used diagnostic tool to evaluate the partial pressures of gas in blood and acid-base content. Understanding and use of blood gas analysis enable providers to interpret respiratory, circulatory, and metabolic disorders.

Option A: Respiratory rate can reveal data about other systems, such as the brain, making letter c a better choice. The respiratory rate is the number of breaths per minute. The normal breathing rate is about 12 to 20 beats per minute in an average adult. In the pediatric age group, it is defined by the particular age group. Parameters important here again include its rate, depth of breathing, and its pattern rate of breathing is a crucial parameter.
Option B: Pulse rate is not a measure of respiratory status. Parameters for assessment of pulse include its rate, rhythm, volume, amplitude, and rate of increase, besides its symmetry The rate of the pulse is significant to measure for assessing the physiological and pathological processes affecting the body. The normal range used in an adult is between 60 to 100 beats /minute with rates above 100 beats/minute and rates and below 60 beats per minute.
Option D: Pulse oximetry yields oxygen saturation levels, which is not a measure of acid-base balance. Pulse oximetry is a non-invasive monitor that measures the oxygen saturation in the blood by shining light at specific wavelengths through tissue (most commonly the fingernail bed).

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