4 doctors agreed: Maybe not allergic: It's not unusual for pain medications such as morphine, demerol, or Dilaudid to be associated with some itching. They all can cause histamine release. This doesn't necessarily mean you are allergic to them. True allergy produces severe symptoms such as hives and trouble breathing. Sometimes Benadryl can help with itching. Or you can ask your doctor to try a different pain medication.
What is the most important electrolyte for the maintenance of osmotic pressure and volume in the extracellular fluid compartment? The most abundant positive ion or cation in the extracellular fluid  is sodium (Na+). Chloride (Cl-) is the most abundant negative ion  or anion.
â¢ Intracellular fluid is found inside cells while extracellular fluid is found outside the cells. â¢ The presence of proteins and amino acids is a feature of intracellular fluid while the absence of those is featured in extracellular fluid.ainly, there are two major types of extracellular fluids known as interstitial fluid and blood plasma. All those discussed factors are the main properties and constituents of interstitial fluids, which is roughly about 12 litres in a fully-grown human. The total volume of blood plasma is about three litres in a human.