Patients with cyanide poisoning have a _____ of the venous-arterial PO2 gradient
#2
Why must fetal hemoglobin have a much higher O2 binding affinity than HbA? _____
#3
Carbon monoxide binds competitively to Hb and with 200-250x _____ affinity than O2
#4
Blood in the umbilical vein has a Po2 of approximately _____ mmHg
#5
One way in which CO2 is carried in the blood is bound to hemoglobin, known as _____ (5%)
#6
Carboxyhemoglobin heme groups not bound by CO have a(n) _____ affinity for O2
#7
What is the secondary regulator of cerebral perfusion?
#8
What is the primary regulator of cerebral perfusion?
#9
How long can the brain withstand hypoxia before sustaining irreversible damage?
#10
Which zone of the lung has the highest Pao2?
_____
Oxygen transport in blood US Medical PG Flashcards - Medical Study Cards
Master Oxygen transport in blood with OnCourse flashcards. These spaced repetition flashcards are designed for medical students preparing for NEET PG, USMLE Step 1, USMLE Step 2, MBBS exams, and other medical licensing examinations.
Oxygen transport in blood Flashcard Deck - 10 Cards
Flashcard 1: Patients with cyanide poisoning have a _____ of the venous-arterial PO2 gradient
Answer: narrowing
Flashcard 2: Why must fetal hemoglobin have a much higher O2 binding affinity than HbA? _____
Answer: Drives O2 diffusion across placenta from mother to fetus
Flashcard 3: Carbon monoxide binds competitively to Hb and with 200-250x _____ affinity than O2
Answer: greater
Flashcard 4: Blood in the umbilical vein has a Po2 of approximately _____ mmHg
Answer: 30
Flashcard 5: One way in which CO2 is carried in the blood is bound to hemoglobin, known as _____ (5%)
Answer: carbaminohemoglobin (HbCO2)
Flashcard 6: Carboxyhemoglobin heme groups not bound by CO have a(n) _____ affinity for O2
Answer: increased
Flashcard 7: What is the secondary regulator of cerebral perfusion?
Answer: PO2 - only takes effect during severe hypoxia
Flashcard 8: What is the primary regulator of cerebral perfusion?
Answer: PCO2
Flashcard 9: How long can the brain withstand hypoxia before sustaining irreversible damage?
Answer: 5 minutes
Flashcard 10: Which zone of the lung has the highest Pao2?
_____
Answer: Zone 1
Extra:
Watch associated Bootcamp video [https://app.bootcamp.com/med-school/pulmonology/videos/blood?index=14]
https://onlinemeded.org?ref=anki
Keywords: Oxygen transport in blood flashcards, medical flashcards, NEET PG preparation, USMLE Step 1 flashcards, Anki alternative, spaced repetition medical, OnCourse flashcards
Oxygen transport in blood Flashcards for USMLE
Study 10 flashcards on Oxygen transport in blood for USMLE Physiology. These active recall cards cover the key concepts, clinical associations, and high-yield facts from this chapter of Gas exchange. Each card is designed to test your understanding rather than just recognition, building stronger and more durable memories for exam day.
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