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.
by admin. Plasma vs Interstitial Fluid. Water is the main component of body fluids. The body water can be found mostly in two major compartments called intracellular fluid and extracellular fluid. Intracellular fluid can be found within the cells of the body.The extracellular fluid can be found outside of the cells. Blood plasma and interstitial fluid are the major compartments of extracellular fluid. Plasma. The extracellular fluid found within the vascular system is the blood plasma.Blood cells and platelets are suspended in this blood plasma.nlike in plasma, only some leucocytes can be found in interstitial fluid. â¢ The glucose concentration is higher in plasma than interstitial fluid. â¢ Amino acid and oxygen concentration are also higher in plasma than in interstitial fluid. â¢ One fourth of the extracellular fluid is composed of water in plasma.