Question

The amount of pericardial fluid in human being is
(A) 10 ml
(B) 15 ml
(C) 20 ml
(D) 125 ml

Answer 1

Hint: The pericardial fluid is found around the heart in a double-layered, sac-like form. Usually there are 2 to 3 tablespoons of pericardial fluid.

Complete answer: To answer this question, first, we need to know about pericardial fluid. Pericardial fluid is the serous fluid that is secreted into the pericardial cavity by the serous layer of the pericardium. The pericardium comprises two layers, one fibrous outer layer and the serous inner layer. This serous layer comprises two membranes that envelop the pericardial cavity into which the pericardial fluid is secreted. This fluid is known as pericardial fluid around the heart, which essentially acts as a lubricant to enable the heart to pump which turns with minimal friction.
Now lets us find the solution from the given options-
1. Generally, the human pericardial cavity has 20–60 ml of fluid. Up to 50 ml of clear, pericardial fluid is found in a healthy person which is an integral part of normal functioning of the heart.
2. The excess fluid is defined as a pericardial effusion around the heart. 125 ml can be considered as pericardial effusion. When the heart develops inflammation it releases extra fluid and collects inside the sac.
3. Blood can also fill the sac during or after a stroke, surgery, or other cardiac procedures complications. High pressures inside the heart often allow the fluid not to drain properly which may cause heart failure in patients. However, the body continues to produce pericardial fluid which results in maximum fluid around the heart.

Thus, the right answer is option C i.e., 20 ml

Note: Typically the fluid around the heart is produced and drained continuously, so that the volume stays constant. The excess pericardial fluid causes the inflammation of the lining around the heart.