What is the effect of an intravenous infusion of pure water quizlet?
What is the effect of an intravenous infusion of pure water quizlet?
What would happen if you were to give a patient pure water in an IV? Patient would die. The difference in concentration of the salts between the inside and outside of the cell would cause it to burst due to osmosis.
Why is it dangerous to administer an intravenous line of pure water to a patient quizlet?
Why is it dangerous to administer an intravenous line of pure water to a patient? *The pure water will draw out proteins from the red blood cells, causing them to shrink. *The pure water will move into the red blood cells causing them to lyse. *The pure water will move out of the red blood cells causing them to lyse.
Why is it important for an intravenous solution to have salts in it?
Why is it important for an IV solution to have salts in it? So that the gradient slope is less steep to prevent the blood cells from exploding. The water would create a steep gradient which would cause the blood vessels to pop. You just studied 9 terms!
Which of the following best describes the power or driving force for active transport?
Flashcards for Final March 8, 2012
| Question | Answer |
|---|---|
| What are the hairlike structures located on the outer surface of the cell membrane? | Cilia |
| Lyosomes are filled with | powerful enzymes that destroy cellular debris and pathogens. |
| Which of the following best describes the power or driving force for active transport? | ATP |
Why are dehydrated patients given saline intravenously instead of water?
A small amount of water injected directly into the blood would not cause lasting harm. Saline solution is specially formulated to match the electrolytes present in blood plasma, therefore, causing less of an osmotic effect compared to other intravenous fluids. It contains sodium and chloride ions as electrolytes.
Why do doctors administer isotonic saline intravenously instead of pure water?
If a person’s blood volume drops because of an injury or severe dehydration, doctors administer isotonic saline intravenously instead of pure water because using pure water would cause water to rush into the cells, which eventually causing them to explode.
What is saline and why is safe to be injected into a person’s veins?
By injection into a vein it is used to treat dehydration such as from gastroenteritis and diabetic ketoacidosis. Large amounts may result in fluid overload, swelling, acidosis, and high blood sodium. In those with long-standing low blood sodium, excessive use may result in osmotic demyelination syndrome.
Why do they give you saline in hospital?
Doctors use IV saline to replenish lost fluids, flush wounds, deliver medications, and sustain patients through surgery, dialysis, and chemotherapy. Saline IVs have even found a place outside the hospital, as a trendy hangover remedy. “It has high levels of sodium and chloride, levels that are higher than the blood.
Why is energy required for active transport?
Active transport requires energy because it is not a passive process. The molecule has to go against the concentration gradient. Hence it requires energy to be carried by the carrier proteins.
What are the advantages of an IV infusion?
The main advantage for giving a drug by IV infusion is that IV infusion allows precise control of plasma drug concentrations to fit the individual needs of the patient.
Which is the best description of intravenous therapy?
Intravenous therapy ( IV) is therapy that delivers fluids directly into a vein. The intravenous route of administration can be used both for injections, using a syringe at higher pressures; as well as for infusions, typically using only the pressure supplied by gravity. Intravenous infusions are commonly referred to as drips .
Why is IV infusion important for heparin treatment?
For drugs with a narrow therapeutic window (eg, heparin), IV infusion maintains an effective constant plasma drug concentration by eliminating wide fluctuations between the peak (maximum) and trough (minimum) plasma drug concentration.
How does drug concentration change during IV infusion?
The plasma drug concentration–time curve of a drug given by constant IV infusion is shown in Fig. 5-1. Because no drug was present in the body at zero time, drug level rises from zero drug concentration and gradually becomes constant when a plateau or steady-state drug concentration is reached.