Author Question: Colloids differ from crystalloids in that 1. they contain electrolytes. 2. they readily leave ... (Read 51 times)

geoffrey · **on:** Jul 23, 2018

Colloids differ from crystalloids in that

1. they contain electrolytes.
2. they readily leave the blood and enter cells.
3. they are too large to cross membranes.
4. they promote urine output.

Question 2

Examples of vasoconstrictors used to treat shock include all of the following except

1. propranolol (Inderal).
2. dobutamine (Dobutrex)
3. norepinephrine (Levophed).
4. phenylephrine (Neo-synephrine).

cam1229 · **Reply #1 on:** Jul 23, 2018

Answer to Question 1

Correct Answer: 3
Rationale 1: Colloids are made up of protein and other large molecules.
Rationale 2: Crystalloids, not colloids, readily cross into cells. Colloids contain proteins that are too large to leave the blood.
Rationale 3: Colloids contain proteins that are too large to leave the blood.
Rationale 4: Crystalloids promote urine output, whereas colloids increase oncotic pressure.

Answer to Question 2

Correct Answer: 1
Rationale 1: Propranolol is a beta blocker used to treat hypertension.
Rationale 2: Dobutamine is a vasoconstrictor used to treat vasodilatation and hypotension, which occur in shock.
Rationale 3: Norepinephrine is a vasoconstrictor used to treat vasodilatation and hypotension, which occur in shock.
Rationale 4: Phenylephrine is a vasoconstrictor used to treat vasodilatation and hypotension, which occur in shock.