ABG Analysis NCLEX Exam #4

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Anne, who is drinking beer at a party, falls and hits her head on the ground. Her friend Liza dials “911” because Anne is unconscious, depressed ventilation (shallow and slow respirations), rapid heart rate, and is profusely bleeding from both ears. Which primary acid-base imbalance is Anne at risk for if medical attention is not provided?

Correct! Wrong!

One of the risk factors of having respiratory acidosis is hypoventilation which may be due to brain trauma, coma, and hypothyroidism or myxedema. Other risk factors include COPD, Respiratory conditions such as pneumothorax, pneumonia and status asthmaticus. Drugs such as Morphine and MgSO4 toxicity are also risk factors of respiratory acidosis.

A mother is admitted in the emergency department following complaints of fever and chills. The nurse on duty took her vital signs and noted the following: Temp = 100 °F; apical pulse = 95; respiration = 20 and deep. Measurement of arterial blood gas shows pH 7.37, PaO2 90 mm Hg, PaCO2 40 mm Hg, and HCO3 24 mmol/L. What is your assessment?

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An individual is considered to have hyperthermia if he or she has a temperature of >37.5 or 38.3 °C (99.5 or 100.9 °F). Measurement of arterial blood gases are normal.

Acids have no hydrogen ions and are able to bind in a solution.

Please select 2 correct answers

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Acids are substances having one or more hydrogen ions that can be liberated into a solution. Bases are substances that can bind hydrogen ions in a solution.

Match the acid-base status of the following blood samples to the disorders in the drop down list. (PaCO2 values are in mm Hg and bicarbonate values in mmol/l). pH 7.57, PaCO2 22, HCO3- 17

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pH 7.39, PaCO2 44, HCO3- 26

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pH 7.55, PaCO2 25, HCO3- 22

Correct! Wrong!

pH 7.17, PaCO2 48, HCO3- 36

Correct! Wrong!

pH 7.34, PaCO2 24, HCO3- 20

Correct! Wrong!

pH 7.64, PaCO2 25, HCO3- 19

Correct! Wrong!

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