If ck mb is elevated and the ratio of ck mb to total ck relative index is more than 2 5 3 then it is likely that the heart was damaged. People who have greater muscle mass have higher ck levels.
After which they return to the normal levels within 24 48 hours.
Ck mb normal range. The laboratory frequently encounters patients in which the ck mb is elevated above 6 ng ml but the total creatine kinase ck is within normal limits 30 225 u l. Ck mb test also known as creatine kinase mb test plays a significant role in detecting whether you have a heart attack a second or subsequent heart attack or not. This is because the ck mb levels are at the peak between 12 and 24 hours.
A blow to the chest may be strong enough to produce cardiac arrhythmias without actual myocardial cell necrosis cardiac concussion or commotion cardis. Let your physician know if you are on any medications so that false positive and false. Serum ck concentrations are reflective of muscle mass causing males to have higher concentrations than females.
That is why men usually have higher ck values than women. Normal ranges of creatine kinase are as follows. A high ck with a relative index below this value suggests that skeletal muscles were.
For females normal levels of creatine kinase range between 90 to 140 units per liter u l of blood. Ck activity is greatest in striated muscle mm isoenzyme heart tissue mb isoenzyme and brain bb isoenzyme. Different laboratories have different normal ranges reported in u l units per liter or ukat l microkatals per liter.
5 25 iu l myocardial infarction. Such patients will have ecg abnormalities with normal ck mb values. Normal serum ck is predominantly the ck mm isoenzyme.
To determine if these results are clinically significant the. Levels should be 2x the patient s baseline. A ck mb ratio greater than 5 is consistent with myocardial injury.
For males normal levels of creatine kinase range between 38 to 174 units per liter u l of blood. Remember that ck and even ck mb are not as specific as troponin i or t to the heart. It is also used to distinguish between skeletal muscle and heart muscle damage.
The low normal limit for both men and women is approximately 20 30 u l 0 34 0 51 ukat l.