Calculation Error in Lupus Anticoagulant Module #8

Calculation Error in Lupus Anticoagulant Module #8
Jan 20, 2012 11:26am

From Laura Lum at Seattle Children’s Hospital:

I couldn’t follow the mathematical calculation for the 4:1 mix mentioned in the Lupus Anticoagulant presentation. The normal plasma is assumed 100%; the patient was 20%. The calculation was [100 + (20 x 4)] divided by 5. The answer was given as 32 but by my calculation, it should be 36 (180/5 = 36). Where did I go wrong?

Hi, Laura, you didn’t, there is an error in the slide. Thank you for bringing it to my attention, I will correct it!

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From Laura Lum at Seattle Children’s Hospital:

I couldn’t follow the mathematical calculation for the 4:1 mix mentioned in the Lupus Anticoagulant presentation. The normal plasma is assumed 100%; the patient was 20%. The calculation was [100 + (20 x 4)] divided by 5. The answer was given as 32 but by my calculation, it should be 36 (180/5 = 36). Where did I go wrong?

Hi, Laura, you didn’t, there is an error in the slide. Thank you for bringing it to my attention, I will correct it!

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