1. What are buffers? 2. Using the pH scale, describe how you can indicate if the blood solution is acid, base or neutral solution. 3. How would you account for the buffering action of the blood?
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- A nurse has a patient who she suspects might have long term respiratory acidosis. Which of the following pieces of information would support her suspicion? 1.An acidic pH and a decrease in Pco2 2. An alkaline (or basic) pH and an increase in Pco2 3. An acidic pH and an increase in Pco2 4. Hyperventilation 5. Hypoventilation 6. Increased plasma HCO3 7. Decreased plasma HCO3 O 1,4, 6 O 2, 5, 6 O 3, 5, 6 O 1, 5, 7 O 3, 4, 6Case Study: Bob 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.3. Matching type sodium sodium clot activator EDTA heparin fluoride citrate light blue red light green lavender gray
- a. calculate the volume of 0.1 M H2PO4– required to prepare 100 mL of your assigned buffer. b. calculate the volume of 0.1 M HPO42– required to prepare 100 mL of your assigned buffer. 1. Assigned pH Value ___6.90_________ 2. pKa Value of Assigned Buffer ___7.20_________ 3. Ratio 0.50114. Order: Start Pitocin drip, 10 units in NS 1000 mL, at 12 mL/hr Available: oxytocin 10 units/mL a. What is the concentration of the solution? b. What is the dosage concentration per hour? c. What is the volume per min?A nurse practitioner orders an isotonic sodium lactate solution with a 50. mL solution per kg body mass to be administered intravenously for a 225-lb patient with severe acidosis. The rate of flow is 151 gtts/min, and the IV administration set delivers 19 gtts/mL, where the unit gtts stands for drops of liquid. What is the running time in minutes?
- -2 What mass of D. A chemistry graduate student is given 450. mL of a 0.60M chlorous acid (HC1O,) solution. Chlorous acid is a weak acid with K =1.1 × 10 KC1O, should the student dissolve in the HCIO, solution to turn it into a buffer with pH =1.80? You may assume that the volume of the solution doesn't change when the KCIO, is dissolved in it. Be sure your answer has a unit symbol, and round it to 2 significant digits. K107. run at 125 mL/hr. How many milliequivalents will be delivered per houra1. The Henderson-Hasselbalch equation for the blood bicarbonate system is: pH = 6.1 + log b. Calculate the ratio for a blood pH of 8.8. c. Is this patient experiencing acidosis or alkalosis? Why? d. What can the body do to restore normal blood pH levels? Why is the body at a pH outside of the prime buffering zone of the bicarbonate system
