Question 29Which of the following will cause a blood pH of 8.2? A.Decreased O2 concentrationB.Decreased tidal volumeC.Increased H2O concentrationD.Increased respiratory rate
Question
Question 29Which of the following will cause a blood pH of 8.2? A.Decreased O2 concentrationB.Decreased tidal volumeC.Increased H2O concentrationD.Increased respiratory rate
Solution
The normal pH range for blood is 7.35-7.45. A pH of 8.2 is significantly more alkaline than normal, indicating a condition known as alkalosis.
Alkalosis can be caused by a decrease in the concentration of hydrogen ions in the blood or an increase in the concentration of bicarbonate ions.
A. Decreased O2 concentration: This would not directly cause an increase in blood pH. Oxygen concentration does not directly affect blood pH.
B. Decreased tidal volume: Tidal volume refers to the amount of air that is inhaled or exhaled during normal breathing. A decrease in tidal volume could potentially lead to a buildup of carbon dioxide in the blood, which would actually decrease the pH (making it more acidic), not increase it.
C. Increased H2O concentration: Water is neutral, with a pH of 7.0. Increasing the H2O concentration in the blood would not directly cause the blood to become more alkaline.
D. Increased respiratory rate: An increased respiratory rate can cause a decrease in carbon dioxide (CO2) levels in the blood. CO2 is an acid, so if it decreases, the pH of the blood can increase, becoming more alkaline.
Therefore, the most likely answer to this question is D. Increased respiratory rate.
Similar Questions
Which of the followig would increase the pH of the blood? high intensity exercise resulting in the production of CO2. decreased ventilation causing a build up of CO2. increased ventilation at the lung to remove CO2. a higher ventilation to perfusion ratio (V/Q) in the lung.
6. An animal experiences an acid-base imbalance in the arterial blood that results in acidosis. Toincrease pH toward normal, which direction would the ventilation rate be changed and what wouldbe the corresponding change in arterial PCO2?A. Ventilation rate increases, arterial PCO2 increasesB. Ventilation rate increases, arterial PCO2 decreasesC. Ventilation rate decreases, arterial PCO2 increasesD. Ventilation rate decreases, arterial PCO2 decreasesE. None of the above
is the following statement correct Increased carbon dioxide levels in the blood lead to decreased pH, making the blood more acidic.
Multiple Choice QuestionThe pH of blood is maintained between 7.0 and 7.8 by solutions of ______ that resist pH changes.Multiple choice question.hydronium ionsindicatorsenzymesbuffers
At the tissues, the amount of oxygen released from oxyhemoglobin __________Blank as the blood pH decreases.Multiple Choiceincreasesdecreases
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