BioChemistry > QUESTIONS & ANSWERS > Goljan High-Yield Flashcards (questions with 100% verified correct answers) (All)

Goljan High-Yield Flashcards (questions with 100% verified correct answers)

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Goljan High-Yield Flashcards (questions with 100% verified correct answers)PO2 - ✔✔Driving force for diffusion of O2 into tissue SaO2 - ✔✔Percent of heme groups occupied by O2 Cyanosis - ✔... ✔Decreased O2 saturation (SaO2) O2 content - ✔✔1.34*Hb *SaO2 + PaO2 Oxygen - ✔✔Electron acceptor in oxidative pathway Hypoxia - ✔✔inadequate O2 leads to ATP depletion Ischemia - ✔✔decreased arterial (or venous) blood flow Respiratory acidosis - ✔✔retention of CO2 always decreases PaO2 Ventilation defect - ✔✔impaired delivery of O2 to alveoli; intrapulmonary shunting (e.g. RDS) Perfusion defect - ✔✔absent blood flow to alveoli; increased alveolar dead space (e.g. pulmonary embolus) Diffusion defect - ✔✔O2 cannot cross alveolar-capillary interface; interstitial lung disease (e.g. sarcoidosis). Methemoglobin - ✔✔dec. SaO2, heme iron 3+, oxidizing agents (sulfur/nitro drugs). Rx = IV methylene blue. [Show More]

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