Reference no: EM131653713

Please, I need someone to help me solve those physiology questions and show me the work. Thanks.

Osmosis, Diffusion, Osmolarity, Tonicity HW

For each of the following clinical scenarios (#1-3), predict the possible effect on a patient's erythrocytes. You need to memorize that the osmolarity of an erythrocyte (and the human body in general) is 300mOsm. Justify your answers by:

A. Calculating mM for ICF and ECF
B. Calculating mOsM for ICF and ECF
C. Determine the osmolarity of the solution
D. Determine the tonicity
E. Determine the permeability of the solute (permeable or impermeable)
F. Determine if diffusion is occurring and in what direction
G. Determine if osmosis is occurring and in what direction

1. A patient is administered an IV (intravenous) solution of 0.9% Na+Cl- (called normal saline, NS), which is approximately isotonic to erythrocytes.

2. A patient is administered an IV solution of 5% dextrose (dextrose is a synonym for glucose), which is approximately iso-osmotic to erythrocytes. Glucose does not dissociate, but it will transport across the erythrocyte membrane and be used in glycolysis (a reaction where glucose is broken down and used as an energy source to generate ATP, which is the energy molecule that directly powers cell activities).

3. A patient is administered an IV solution of 5% dextrose in normal saline (D5NS) where dextrose is added to 0.9% Na+Cl- solution to bring dextrose's concentration to 5%.