18. Which of the blood gas values does one use to determine whether the body is

Question

18. Which of the blood gas values does one use to determine whether the body is in acidosis or alkalosis? A. pH C. Poo D all of these 19. If the blood Pech was low you would expect: A. a more acidie pH B. a more basic pH C. more tubular H" secretion D. ventilation rate to go up 20. If an individual has a fully compensated metabolic acidosis, the person's pH is: A. high. B. low C. nearly normal. D. impossible to determine. Which of the following series of laboratory values reflects a state of uncompensated metabolic alkalosis? A. increased pH, increased bicarbonate B. increased pH, decreased bicarbonate C. decreased plH, increased bicarbonate D. decreased pH, decreased bicarbonate 21. 22. Which of the following alterations is evidence that the kidneys are compensating for a respiratory acidosis condition? A. decreased carbon dioxide B. elevated carbon dioxide C. decreased bicarbonate ion D. elevated bicarbonate ion 23. An individual in diabetic ketoacidosis would have which of the following lab values? A. high serum potassium levels B. low serum potassium levels C. high serum sodium levels D. low serum calcium levels 24. The following blood gas values indicate which type of acid base imbalance? H-7.51Pco-45 HCO, 34 A. partially compensated respiratory alkalosis B. partially compensated metabolic alkalosis C. fully compensated respiratory acidosis D. uncompensated metabolic acidosis 25. A person's blood gas values are: pH 7.49, Pco,-40, HCO,-30. This condition is: A. fully compensated metabolic acidosis B. uncompensated respiratory alkalosis C. partially compensated respiratory alkalosis D. uncompensated metabolic alkalosis

Explanation / Answer

18) The pH value is used to determine whether the body is in acidosis or alkalosis. The normal pH value us 7.4 and if pH is less than 7.4, the condition is known as acidosis and if the pH is above 7.4, the condition is known as alkalosis. The PCO2 and HCO3- levels are used to support the condition and mechanism behind it (respiratory and metabolic).

19) If the blood pCO2 was low, less of carbonic acid is formed. There is hyperventilation or disorders of gaseous exchange in alveoli. So, the pH of blood will increase and there would be a more basic pH.

20) If the individual has fully compensated metabolic acidosis, the persons pH remains nearly normal. The primary mechanism of metabolic acidosis will be compensated by respiratory alkalosis.

21) Uncompensated metabolic acidosis: As there is acidosis, the pH will be low. As it is metabolic and uncompensated, the levels of bicarbonate (HCO3-) will be low (option D).

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