Cardiac Functions include:
Creatine phosphokinase (creatine phosphokinase):
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This enzyme is abundant in the muscles of the body and the muscles of the heart and the muscles of the brain
The function of this enzyme cracking creatine phosphate to obtain energy in the form of ATP binds to muscle work.
This enzyme is found in three similar forms that can be distinguished by electroplating:

1. Special MM body muscles
2. Special MB heart muscles
3. Special BB brain muscles
   The importance of measuring this enzyme is limited to the diagnosis of cirrhosis of the heart muscle tissue.
   

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The enzyme increases in other diseases such as:
1 - muscle atrophy and inflammation.
2 - Injury or injury to muscles in accidents.
3 - in cases of hypothyroidism.
4 - after a stroke in the brain.
5 - sometimes in the case of severe neurological trauma.
6 - some cancer tumors such as ovarian cancer, breast and prostate.

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The normal level of this enzyme level in blood is 10 to 85 IU per liter of blood.

2 - the enzyme dehydrogenation of lactate (Lactate Dehydrogenase - LDH)

This enzyme has five similar forms that can be separated and distinguished by electrolytic methods, each of which consists of 4 units and is called enzyme analogues.
This enzyme plays a role in the diagnosis of cirrhosis of the tissues of the heart muscles, and is found in most muscles in the organs such as the heart, liver and kidney.

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The enzyme increases in other diseases such as:
1 - hepatic infection.
2- Pulmonary injury.

1. Inflammation and muscular atrophy.
   4 - Anemia disease break the blood.

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The normal level of this blood enzyme is 85 to 190 IU per liter of blood.

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1. Aspartate Amino Transferase (AST) or Glutamate Oxaloacetate Transaminase (GOT)
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   This enzyme is produced from many tissues, especially the liver, heart and muscle tissues, which play a role in the diagnosis of fibrosis of the heart muscle tissue.

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The enzyme increases in other diseases such as:
1 - muscle trauma and muscle ruptures.
2 - liver diseases that lead to hepatitis.
Acute pancreatitis.
4 - when taking some drugs such as medicine erythromycin, and morphine (increase
liar).
5 - angina pectoris (natural increase).

1. Cardiac insufficiency (natural increase).
   7 - the final stages of hepatic impairment or hepatic fibrosis (natural increase).

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The enzyme decreases in:
The occurrence of laziness in the heart.

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The normal level of this blood enzyme level is 8 to 33 IU per liter of blood.

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1. Troponin (Troponin)
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   It is an analysis of a type of cell protein that occurs when an exit from the cell, and
   Thus increasing the serum in cases of heart attack.

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The normal level of blood protein level: less than 0.10.

Myoglobin

It is an iron-bearing protein (hemoglobin equivalent) in muscle cells.

Normal range of blood protein: 0 to 100 ng / ml.