Homework Answers
We will apply Handerson hasselbalch equation here.
pH = pKa + log { [base] / [Acid] }
Where,
pH = 7.50
pKa = - log of acid dissociation constant of acid = 6.10
[base] = concentration of conjugate base of acid = [ HCO3^-] = 24mmol/L = 0.024 mol/L
[acid] = H2CO3 concentration.
Plugging in all the values,
7.50 = 6.10 + log 0.024 - log [H2CO3]
- log [H2CO3] = 7.50 - 6.10 - log 0.024 = 3.02
Taking antilog of both sides will give us acid concentration
log [H2CO3] = -3.02
[H2CO3] = 9.55 x 10^-4 mol / L = 0.955 mmol/ L
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A patient has just been admitted to the emergency room around 9 pm. The patient was disoriented, ...
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suffering from nausea and vomiting. She was also hyperventilating,
i.e. over breathing. The patient accidentally took an entire bottle
of aspirin, which contained 250 tablets, around 7 pm that evening.
Blood from the patient is analysed and the analyses shown in Table
1. The patient is experiencing mild respiratory alkalosis.
In the emergency room, the patient is given...
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the
Ka for this reaction is 7.94 x 10^-7.
The normal pH of the blood is 7.40.
The acid neutralization equation is HCO3 + H3O ---> H2CO3 +
H2O.
(3 points) Excess blood acid is produced by diabetes and by anaerobic respiration after severe burns. The body employs both the carbonate buffer action and increased breathing rates to lower the blood acid level. Calculate the resulting blood pH if the blood acid level suddenly increases by 10.0 mM of H30*....
A patient with COPD has an arterial blood gas (ABG) content of 65 mm Hg. A normal ABG oxygen level ranges between 80 and 100 millimeters of mercury (mm Hg). If you send this patient to the hyperbaric chamber what oxygen pressure do you need to program the machine to bring the ABG content to 90 mm Hg. (assume your patient is the average human) Additional information: The average human has 3 liters of blood. Body temperature is 37 C....
A patient has just been admitted to the emergency room around 9
pm. The patient was disoriented, had trouble speaking, and was
suffering from nausea and vomiting. She was also hyperventilating,
i.e. over breathing. The patient accidentally took an entire bottle
of aspirin, which contained 250 tablets, around 7 pm that evening.
Blood from the patient is analysed and the analyses shown in Table
1. The patient is experiencing mild respiratory alkalosis.
In the emergency room, the patient is given...
A nurse assesses a client who is experiencing an acid-base imbalance. The client's arterial blood gas values are pH 7.33, PaO2 88 mm Hg. PaCO2 38 mm Hg, and HCO3- 19 mEq/L. Which assessment should the nurse perform first? A. Cardiac rate and rhythm B. Skin and mucous membranes C. Musculoskeletal strength D. Level of orientation A nurse assesses a client who is admitted with an acid-base imbalance. The client's arterial blood gas values are pH 7.32, PaO2 85 mm...
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