Extracellular Fluid (ECF) and Intracellular Fluid (ICF): Plasma Osmolality (POsm)
Über den Vortrag
Der Vortrag „Extracellular Fluid (ECF) and Intracellular Fluid (ICF): Plasma Osmolality (POsm)“ von Carlo Raj, MD ist Bestandteil des Kurses „Nephrology: Foundations“.
Quiz zum Vortrag
Why is sodium doubled in the plasma osmolality equation?
- In order to account for electroneutrality
- Because it travels as a diatomic molecule
- It is the proportion of Na compared to other solutes
- It is related to the atomic weight of sodium
- It is twice the size of the solvent molecule
Urea is NOT considered relevant for effective osmolality but it IS relevant in the maintenance of the countercurrent mechanism. Which of the following explains this dichotomy?
- All are correct
- Thick ascending limb is impermeable to water
- Urea diffuses freely between ECF and ICF
- The capillary membrane is permeable to water and solute.
- The cell membrane is permeable to water.
Why is urea ignored when nephrologists discuss effective plasma osmolality?
- Water shifts do not occur with a change in urea concentration.
- Urea is highly polarized.
- All answers are correct.
- Urea is limited by renal blood flow.
- Urea complexes with albumin.
Which of the following statements about cell membrane permeability is correct?
- Fluid moves according to the osmolality.
- It is impermeable to urea.
- It is permeable to glucose.
- It is permeable to sodium.
Which of the following fluid compartment changes would you expect to find in a patient with diabetes insipidus?
- Increased ECF osmolality
- Increased plasma volume
- Increased ICF volume
- Decreased ECF osmolality
- Increased ECF volume
Which of the following statements about fluid compartments is INCORRECT?
- The capillary membrane is impermeable to sodium.
- Shifts between the ICF and ECF are controlled by solute concentration.
- The cell membrane is impermeable to sodium and glucose.
- The plasma compartment and interstitium are separated by the capillary membrane.
- ECF and ICF are separated by the cell membrane.
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Dozent des Vortrages Extracellular Fluid (ECF) and Intracellular Fluid (ICF): Plasma Osmolality (POsm)
Carlo Raj, MD
Dr. Carlo Raj is a Physician and Lecturer at Becker’s Healthcare, in Illinois, USA, and the CEO and founder of Indus Intellect Virtual MedEd, a medical education consulting company.
He obtained his MD from Medical University of the Americas (MUA) and is an international lecturer and public speaker.
Within Lecturio, Dr. Raj teaches courses on Pathology.
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This guy is awesome!, clear and straight forward. I love the way he motivates me to just keep the important data and let go unnecessary details.
Best lecture. I like the video.I read the slide with this lecture that help me to understand the our lecture.
I understand, but I think, the lesson needs drawings and diagrams, but is very well, thanks
