11/05/2024 1:06 AM
PCU Exam Questions With Correct Answers
What are normal ABG values? - answer✔pH: acidic 7.35-7.45 basic
CO2: basic 35-45 acidic
HCO3-: acidic 22-26 basic
normal paO2 - answer✔80-100 mmHg
what pH levels are lethal? - answer✔outside 6.8-7.8
where are ABGs drawn from? what test is done to ensure adequate blood flow? - answer✔peripheral
artery; allen's test for radial artery
How do the kidneys help maintain acid-base balance? - answer✔retain/excrete basic HCO3 and
retain/excrete acidic H+
treatments for respiratory acidosis - answer✔-oxygen
-intubation
-bronchodilators
-drug reversal agents
-incentive spirometer
-suction
treatments for respiratory alkalosis - answer✔-breathing into paper bag
-anxiolytics
-analgesics
-reduce fever
-reduce ventilation
, ©THEBRIGHT EXAM SOLUTIONS
11/05/2024 1:06 AM
-return to normal altitude
treatments for metabolic acidosis - answer✔-IV sodium bicarbonate
-manage blood sugar
-antibiotics
-reversal for OD
-anti-diarrheal agents
-dialysis
-encourage respirations/ventilate
treatments for metabolic alkalosis - answer✔-antiemetics
-stop suctioning
-d/c drugs causing acid loss (diuretics, antacids)
-hydrochloric acid (rare)
what is systolic vs diastolic heart failure? - answer✔systolic: type of L sided HF with reduced EF of < 40%;
impaired contraction
diastolic: type of L sided HF with preserved EF > 50%; impaired relaxation
what 3 things occur in systolic HF? - answer✔1. SNS activation (increased HR, contractility, peripheral
vasoconstriction)
2. RAAS activation (sodium + water retention, peripheral vasoconstriction)
3. LV dilation
what are symptoms of right sided heart failure? - answer✔swelling: swelling, weight gain, edema, large
neck vein (JVD), lethargy, irregular HR, nocturia, girth, hepatic tenderness, anorexia, ascitis
what are treatments for right sided heart failure? - answer✔-sodium and fluid restriction to manage
preload
-moderate doses of diuretics
-ACE, ARBs, beta blockers if due to L ventricular failure