# Which is more ICF or ECF?

## Which is more ICF or ECF?

The ICF has higher amounts of potassium, phosphate, magnesium, and protein compared to the ECF. The plasma has high concentrations of sodium, chloride, and bicarbonate, but lower levels of protein as compared to the ICF.

## What are the volumes of the intracellular and extracellular compartments?

Intracellular Fluid = 33% ( 23.1 litres) ; this volume is regulated by the movement of free water. Extracellular Fluid = 27% (18.9 litres); this volume is regulated by the movement of sodium.

How much fluid is in the ECF?

The volume of ECF is typically 15L (of which 12L is interstitial fluid and 3L is plasma). The ECF contains extracellular matrices (ECMs) that act as fluids of suspension for cells and molecules inside the ECF.

What percentage of body fluid is extracellular?

The extracellular fluid comprises approximately 20% of total body weight and further subcategorizes as plasma at approximately 5% of body weight and interstitial space which is approximately 12% of body weight.

### What are the percentage of fluid compartments of body water?

2.1. 2 Compartments

% of Body Weight % of Total Body Water
ECF 27 45
Plasma 4.5 7.5
ISF 12.0 20.0
Dense CT water 4.5 7.5

### Is there more intracellular or extracellular fluid?

Extracellular fluid makes up about one-third of body fluid, the remaining two-thirds is intracellular fluid within cells. The main component of the extracellular fluid is the interstitial fluid that surrounds cells.

What is the approximate volume of each of the body fluid compartments?

Approximately 67% of total body water (or ~40% of total body weight) is in the intracellular fluid (ICF) compartment, which is the fluid that is present in the cytoplasm of all cells of the body. Therefore, the total volume of ICF is ~28 L (cytoplasmic volume of all cells combined).

What is the approximate intracellular fluid volume?

Intracellular Fluid The ICF makes up about 60 percent of the total water in the human body, and in an average-size adult male, the ICF accounts for about 25 liters (seven gallons) of fluid. This fluid volume tends to be very stable, because the amount of water in living cells is closely regulated.

#### How do you calculate ECF volume?

One such marker is Evan’s Blue, a dye which binds to plasma proteins. To measure the extracellular fluid volume, use a cell inpermeant marker substance such as inulin or mannitol that will equilibrate everywhere except in the cells (it is possible to make inulin and mannitol radioactive).

What percentage make up the intracellular and extracellular compartments?

The intracellular fluid compartment contains the fluid that is present in the cytoplasm of all cells of the body. This compartment holds approximately 67% of the total volume of body fluids. The extracellular fluid compartment makes up approximately 33% of the total volume of body fluids.

How does ECF volume affect blood pressure?

Since cardiac output is one of the main determinants of arterial blood pressure (ABP = CO x TPR), changes in the ECF volume will, eventually, lead to changes in arterial blood pressure. For instance, a fall in the ECF volume during dehydration may lead to hypotension. Conversely, an increase in ECF volume will promote hypertension.

## What is the volume in the ECF compartment?

The ECF volume is the sum of the plasma volume and interstitial fluid volume. Plasma makes up about 58% of the blood volume. Blood volume is typically about 5 L, whereas ECF volume is about 14 L.

## What is the difference between ICF and ECF?

There is a major difference in composition between intracellular (ICF) and extracellular (ECF) fluid compartments. ICF is characterised by high K+, protein-, calcium and organic phosphates. ECF is mainly Na+ and Cl- (except for albumin in the vascular space)

How do you calculate fluid deficit?

DEFICIT FLUID AND ELECTROLYTES -Water deficit can be determined by subtracting the patient’s current weight from his/her weight just before he/she became dehydrated. However, it is usually determined by clinical criteria and is a percentage estimate of the total amount of body weight lost as water.