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GU 6 (Acid/base)
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Question | Answer |
---|---|
Which antihypertensive drug fits the following SE: first dose orthostatic hypotension | prazosin or doxazosin |
Which antihypertensive drug fits the following SE: hypertrichosis | minoxidil |
Which antihypertensive drug fits the following SE: dry mouth, sedation, severe rebound HTN | clonidine |
Which antihypertensive drug fits the following SE: bradycardia, impotence, asthma exacerbation | b-blockers |
Which antihypertensive drug fits the following SE: reflex tachycardia | vasodilators |
Which antihypertensive drug fits the following SE: cough | ACE-I |
Which antihypertensive drug fits the following SE: avoid in pts with sulfa allergy | HCTZ |
Which antihypertensive drug fits the following SE: angioedema | ACE-I |
Which antihypertensive drug fits the following SE: development of drug-induced lupus | hydralazine |
Which antihypertensive drug fits the following SE: cyanide tox | sodium nitroprusside |
What can a physician refuse to continue treating a pt on the grounds of futility? | when there is no rationale for treatment, when the maximal intervention has already failed, when the tx doesn't achieve the goals of care |
What is the next step in the dx of cholecystitis when the US is equivocal? | HIDA scan |
Describe the urine pH, serum K+, and serum HCO3- for type I renal tubular acidosis (distal). | High pH, low K+, variable, often low HCO3- |
Describe the urine pH, serum K+, and serum HCO3- for type II renal tubular acidosis (proximal). | normal pH, low K+, low HCO3- |
Describe the urine pH, serum K+, and serum HCO3- for type IV renal tubular acidosis(hypoaldosterone). | normal pH, increase K+, normal HCO3- |
What acid-base d/o would cause the following lab values: pH 7.30, HCO3- 12, pCO2 26 | metabolic acidosis with resp. compensation |
What acid-base d/o would cause the following lab values: pH 7.25, HCO3- 17, pCO2 40 | metabolic acidosis |
What acid-base d/o would cause the following lab values: pH 7.23, HCO3- 24, pCO2 55 | respiratory acidosis |
What is the ddx for metabolic acidosis with normal anion gap? How can serum K be useful in narrowing the ddx? | Low K (RTA types I and II, diarrhea, Fanconi syndrome), High K (Addison dz, RTA type IV, hyperalimentation |
What is the treatment for Type I RTA? | oral HCO3-, K+, thiazides |
What is the treatment for Type II RTA? | oral HCO3-, K+, thiazides |
What is the treatment for Type IV RTA? | flutrocortisone, K+ restriction |
Name the common cause(s) of the following acid base disturbance: metaolic alkalosis | dehydration, vomiting, diuretics, hyperaldosteronism, cushing syndrome |
Name the common cause(s) of the following acid base disturbance: respiratory alkalosis | hyperventilation (high altitudes, ASA tox, PE, asthma) |
Name the common cause(s) of the following acid base disturbance: respiratory acidosis | COPD, Resp. depression (narcotic OD, neuromuscular dysfunction) |
Name the common cause(s) of the following acid base disturbance: anion gap metabolic acidosis | MUD PILES: methanol, uremia, diabetic ketoacidosis, paraldehyde, INH, lactic acidosis, ethanol, salicylates |
Name the common cause(s) of the following acid base disturbance: non-gap metabolic acidosis | diarrhea, RTA, TPN, addison dz |
What acid-base d/o would cause the following lab values: pH 7.42, HCO3- 32, pCO2 64 | combined metabolic alkalosis/resp acidosis |
What acid-base d/o would cause the following lab values: pH 7.39, HCO3- 12, pCO2 22 | combined metabolic acidosis with respiratory alkalosis |
What acid-base d/o would cause the following lab values: pH 7.33, HCO3- 13, pCO2 28 | metabolic acidosis with resp. comp |
What acid-base d/o would cause the following lab values: pH 7.24, HCO3- 18, pCO2 40 | metabolic acidosis |
What acid-base d/o would cause the following lab values: pH 7.30, HCO3- 24, pCO2 54 | respiratory acidosis |
What acid-base d/o would cause the following lab values: pH 7.50, HCO3- 22, pCO2 22 | resp alkalosis |
What acid-base d/o would cause the following lab values: pH 7.34, HCO3- 31, pCO2 62 | respiratory acidosis with metabolic comp |
What acid-base d/o would cause the following lab values: pH 7.10, HCO3- 15, pCO2 50 | combined metabolic and respiratory acidosis |