Acid-base balance US Medical PG Flashcards - Medical Study Cards
Master Acid-base balance 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.
Acid-base balance Flashcard Deck - 10 Cards
Flashcard 71: In the lumen of the late distal tubule and collecting duct, secreted H+ combines with HPO4^2- to form H2PO4^-, which is a(n) _____ acid
Answer: titratable
Extra: Phosphate is the most important titratable acid buffer because its pKa (6.8) is close to the tubular fluid pH. (Note: Titratable acidity specifically excludes NH3/NH4+).
Flashcard 72: In the lumen of the collecting duct, _____ and _____ combine to form NH4+
Answer: NH3
Extra: This process is known as **diffusion trapping**.\n\nIn the **proximal tubule**, NH4+ is secreted directly into the lumen (substituting for H+ on the Na+/H+ exchanger).
Flashcard 73: Pepsinogen is secreted in response to _____ and local H+
Answer: vagal stimulation
Extra:
Watch associated Bootcamp video [https://app.bootcamp.com/med-school/gastroenterology/videos/physiology?index=6]
https://onlinemeded.org?ref=anki
Flashcard 74: HCO3- is transported from the cells of proximal tubule into the blood by _____ cotransport and Cl--HCO3- exchange
Answer: Na+-HCO3-
Extra:
Watch associated Bootcamp video
https://onlinemeded.org/spa/renal?ref=anki
Flashcard 75: Besides a type II RTA, what acid-base disorder may be caused by acetazolamide?
_____
Answer: Normal anion gap metabolic acidosis
Extra:
Sketchy Pharmacology: Renal (Diuretics)
Watch Acetazolamide, mannitol [https://dashboard.sketchy.com/study/medical/courses/medical-pharmacology/units/medical-pharmacology-cardiovascular-renal/videos/medical-pharmacology-cardiovascular-and-renal-diuretics-acetazolamide-mannitol?utm_source=anki&utm_medium=partnership&utm_campaign=february_update&utm_content=medical]
https://onlinemeded.org/spa/nephrology?ref=anki
Flashcard 76: Neurological disorders (e.g. ALS, Guillain-Barré, polio, MG, botulism) may cause _____
Answer: respiratory acidosis
Extra:
Watch Acid/Base Disorders [https://dashboard.sketchy.com/study/medical/courses/medical-pathophysiology/units/medical-pathophysiology-renal/videos/medical-pathophysiology-renal-volume-electrolyte-and-acidbase-disorders-acidbase-disorders?utm_source=anki&utm_medium=partnership&utm_campaign=february_update&utm_content=medical]Watch associated Bootcamp video [https://app.bootcamp.com/med-school/nephrology/videos/acid-base-physiology?index=10]
https://onlinemeded.org/spa/renal?ref=anki
Flashcard 77: Lactose intolerance is characterized by a(n)_____ stool pH
Answer: decreased
Extra:
https://onlinemeded.org/spa/gastroenterology/malabsorption/acquire?ref=anki
Flashcard 78: Increased PCO2 (respiratory acidosis) results in _____ HCO3- reabsorption
Answer: increased
Extra:
Watch Acid/Base Disorders [https://dashboard.sketchy.com/study/medical/courses/medical-pathophysiology/units/medical-pathophysiology-renal/videos/medical-pathophysiology-renal-volume-electrolyte-and-acidbase-disorders-acidbase-disorders?utm_source=anki&utm_medium=partnership&utm_campaign=february_update&utm_content=medical]Watch associated Bootcamp video [https://app.bootcamp.com/med-school/nephrology/videos/acid-base-physiology?index=10]
https://onlinemeded.org/spa/nephrology?ref=anki
Flashcard 79: Hyperventilation as a respiratory compensation for metabolic acidosis is known as _____ breathing
Answer: Kussmaul
Extra:
Watch Diabetic Ketoacidosis (DKA) & Hyperosmolar Hyperglycemic State (HHS) [https://dashboard.sketchy.com/study/medical/courses/medical-pathophysiology/units/medical-pathophysiology-endocrine/videos/medical-pathophysiology-endocrine-diabetes-diabetic-ketoacidosis-dka-and-hyperosmolar-hyperglycemic-state-hhs?utm_source=anki&utm_medium=partnership&utm_campaign=february_update&utm_content=medical]
https://onlinemeded.org/spa/endocrine/diabetes/acquire?ref=anki
Flashcard 80: Distal renal tubular acidosis is associated with _____-kalemia
Answer: hypo
Extra:
Watch Renal Tubular Acidosis (RTA) [https://dashboard.sketchy.com/study/medical/courses/medical-pathophysiology/units/medical-pathophysiology-renal/videos/medical-pathophysiology-renal-volume-electrolyte-and-acidbase-disorders-renal-tubular-acidosis-rta?utm_source=anki&utm_medium=partnership&utm_campaign=february_update&utm_content=medical]Watch associated Bootcamp video [https://app.bootcamp.com/med-school/nephrology/videos/acid-base-physiology?index=14]
https://onlinemeded.org/spa/renal?ref=anki
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