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Enzymatic Determination of Creatine Kinase (CK) Activity. So… what does that mean?. CK is an enzyme that everyone has in their bodies. It is mainly located in the heart & skeletal muscles. Damage to these causes CK to be released into the bloodstream.
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So… what does that mean? • CK is an enzyme that everyone has in their bodies. • It is mainly located in the heart & skeletal muscles. • Damage to these causes CK to be released into the bloodstream. • Therefore, if you test the blood & find a heightened level of CK, it can be determined that the body has received damage.
However… • There is more than one type of CK; therefore, more tests are required. • CK2 comes from the heart while CK3 comes from the muscles. -More on that from Justin & Kendra.
How it’s done • First, you take the CK Reagent (2.4ml; this contains everything needed to react with the CK in the samples). • Then, you add your sample (0.1ml) & mix with the vortex-genie. • Next, you put it into the prepared spectrophotometer & read the absorbance reading provided by the machine at given times.
What is a spectrophotometer, & why did we use one? • A spectrophotometer is a device that shines light into a sample & measures how much light was absorbed by the sample. • We used one because the products of the CK & CK Reagent reaction are light absorbent. • Therefore, the samples with more CK will have more products which will absorb more light.
What we learned… • How to properly use lab equipment including spectrophotometers, pipettes, pipetters, capillaries, & etc. • What CK is & how it relates to our heart • How to measure CK • How not to get CK Reagent on ourselves