Anatomy & Physiology
5th Edition
ISBN: 9780321861580
Author: Marieb, Elaine N.
Publisher: Pearson College Div
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Chapter 25, Problem 12RQ
The pH of blood varies directly with (a) HCO3–, (b) 
, (c) H+, (d) none of the above.
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The pH of blood varies directly with (a) HCO3−, (b) PCO2, (c) H+, (d) none of the above.
An individual's ratio of carbonic acid and bicarbonate ions is 17/0.6
Which of the following is a true statement?
For a total of 3 answers - choose one of each of the following pairs:
i) respiratory or metabolic
ii) acidosis or alkalosis
iii) uncompensated or partial compensation
Harry ate a late meal at a cheap diner on the way home from work.A couple of hours later, he vomited three times, and then he consumed several packages of an antacid (mostly NaHCO3) over thenext several hours. By the evening of the next day, he was feelingbetter. During this ordeal, his blood pH did not deviate significantly.Select the mechanism(s) that helped maintain Harry’s pH within anormal range.(1) increased respiratory rate(2) increased H+ secretion by the renal tubule(3) decreased respiratory rate(4) decreased H+ secretion by the renal tubulea. 1 b. 2 c. 1,2 d. 3 e. 3,4
Chapter 25 Solutions
Anatomy & Physiology
Ch. 25 - Which do you have more of, extracellular or...Ch. 25 - What is the major cation in the ECF? In ICF? What...Ch. 25 - If you eat salty pretzels without drinking, what...Ch. 25 - Prob. 4CYUCh. 25 - ADH, by itself, cannot reduce an increase in...Ch. 25 - For each of the following, state whether it might...Ch. 25 - Jacob has Addisons disease (insufficient...Ch. 25 - Prob. 8CYUCh. 25 - Prob. 9CYUCh. 25 - Define acidemia and alkalemia.
Ch. 25 - Prob. 11CYUCh. 25 - What are the bodys three major chemical buffer...Ch. 25 - Joanne, a diabetic patient, is at the emergency...Ch. 25 - Reabsorption of HCO3 is always tied to the...Ch. 25 - Prob. 15CYUCh. 25 - Prob. 16CYUCh. 25 - Which two abnormalities in plasma are key features...Ch. 25 - How do the kidneys compensate for respiratory...Ch. 25 - Body water content is greatest in (a) infants, (b)...Ch. 25 - Potassium, magnesium, and phosphate ions are the...Ch. 25 - Sodium balance is regulated primarily by control...Ch. 25 - Prob. 4RQCh. 25 - Two main substances regulated by the influence of...Ch. 25 - Two substances regulated by parathyroid hormone.Ch. 25 - Two substances secreted into the proximal...Ch. 25 - Prob. 8RQCh. 25 - Prob. 9RQCh. 25 - Prob. 10RQCh. 25 - Prob. 11RQCh. 25 - The pH of blood varies directly with (a) HCO3, (b)...Ch. 25 - In an individual with metabolic acidosis, a clue...Ch. 25 - Name the body fluid compartments, noting their...Ch. 25 - Prob. 15RQCh. 25 - Prob. 16RQCh. 25 - Prob. 17RQCh. 25 - Prob. 18RQCh. 25 - Explain how the chemical buffer systems resist...Ch. 25 - Explain the relationship of the following to renal...Ch. 25 - Mr. Heyden, a somewhat stocky 72-year-old man, is...Ch. 25 - Mr. Heyden, a somewhat stocky 72-year-old man, is...Ch. 25 - Mr. Heyden, a somewhat stocky 72-year-old man, is...Ch. 25 - Mr. Heyden, a somewhat stocky 72-year-old man, is...
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- In what range would the blood pH of a heavy smoker with advanced emphysema fall: (a) less than 7.35; (b) 7.35–7.45; (c) greater than 7.45? Explain your choice.arrow_forwardCarbon dioxide dissolved in body fluids has a pronounced effect on pH.(a) Does pH go up or down when carbon dioxide dissolves in these fluids? Does this change indicate higher or lower acidity?(b) What does a blood gas analysis measure?arrow_forwarda 86 years old women brought to emergency room with these readings :PH = 7.22 (normal :7.35-7.45) , PaCO2 = 9.6 mmHg ( normal: 35-45) ,HCO3- = 3.9 mmol/l ( normal : 22-26) .. she complains from : A) Metabolic acidosis. B)Respiratory acidosis. C)Metabolic alkalosis. D)Respiratory alkalosis.arrow_forward
- The carbonic acid equilibrium is shown below. Exhalation of CO2 by the lungs causes this equilibrium to shift to the ______, which causes the pH of the blood to _______. H+ + HCO3- <=> H2CO3 <=> H2O + CO2 a) left; increase b) left; decrease c) right; decrease d) right; increasearrow_forwardMicky Mango is a 64-year-old male admitted to the emergency room for asthma. His laboratory results are as follows: pH 7.31, pCO2 higher than normal, and total HCO3– also higher than normal. Classify his acid-base balance as acidosis or alkalosis, and as metabolic or respiratory. Is there evidence of compensation? Propose the mechanism by which asthma contributed to the lab results seen.arrow_forwardHow does HCO3- (Bicarbonate ion) help to maintain the pH balance of the blood?arrow_forward
- The phosphate buffer system is most important in the Choose from the following: (A) respiratory system (B) cardiovascular system (C) digestive system (D) urinary systemarrow_forwardA 19 year old college student has been vomiting all night and has a tingling sensation in her face. Her ABG results are as follows: pH - 7.49 pCO2-46.5 HCO3 - 27.5 1. Is she in acidosis or alkalosis? 2. Is the cause respiratory or metabolic? 3. Is this uncompensated, partially compensated or fully compensated?arrow_forwardHelen is a 62-year-old smoker. Her physician has diagnosed her as having emphysema that has caused her to hypoventilate. Surprisingly, when her blood pH is checked, it is 7.40. Why?arrow_forward
- Consider the equilibrium shown below; indicating the buffering system in the blood circulation. CO, + H,0 [H,CO3] HCO3¯+H* When a patient is choking, would this lead to an alkalosis or an acidosis situation? Explain.arrow_forwardAn unconscious patient is delivered to emergency room. His blood gases are obtained: pH = 7.09, HCO3- = 15 mEq/L, pCO2 = 50mmHg. What type of acid-base disorder this patient has? Why is he unconscious?arrow_forwardA 42 year old man with severe stomach pain has been admitted to the hospital. His ABG results are as follows: pH-7.50 pCO2 - 32 HCO3--21 1. Is he in acidosis or alkalosis? 2. Is the cause respiratory or metabolic? 3. Is this uncompensated, partially compensated or fully compensated?arrow_forward
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