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The sample on the right was submitted for PT and aPTT assays. All of the following are reasons why the specimen is unacceptable EXCEPT:

a) Heparin or warfarin monitoring may be inaccurate if this specimen is used
b) The clotting times will be erroneously shortened if this specimen were used
c) The ratio of whole blood to citrate buffer is less than 9:1
d) There is an excess of citrate buffer relative to plasma
e) None of the above. The specimen is acceptable

User Durin
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1 Answer

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The correct answer is e) None of the above. The specimen is acceptable.

Based on the given options, all of them provide reasons why the specimen would be unacceptable, except for option e. Therefore, if none of the above reasons apply, it means the specimen is acceptable.

User Hitesh Dhamshaniya
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