111 Verizon * 29%) 10:35 PM daftpunk.no 2 of 4 5015 page Experiment Results Pred

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111 Verizon * 29%) 10:35 PM daftpunk.no 2 of 4 5015 page Experiment Results Predict Quesion Predict Quession: How will the sedimentation rate for sample 6 ndividual with angina pectoris) compare with the sedimentation rabe for sample 1 healthy individual? Your answere. It will be the same Stop & Think Questions what is in the beige coloned partion of the sedimentation sube You cornectly answered:c. plasma Experiment Data Distance RBCs have seed Sample 1: healthy individual Sample 2 menstruating female Sample 3: individual with sickle cell anemia Sample 4: individual with iron-deficiency anemia Sample S individual suffering a myocardial infarction Sample 6c individual with angina pectoris 05/0895 page 2 PosHab Quiz Resus You scored 100% by ariswerg 3 out ot 3questons correctly. 1- The erythrocyte sedmertaton rat" SR, measures You comectly answered d. the settling of FCs in a vertical, stationary tube of whole blood duting one hour An increase in the

Explanation / Answer

the two samples showing highest sedimenttion rate are -

individual with iron deficiency anemia

individual with myocardial infarction

The ESr levels are high in anemia.In anemia, with the hematocrit reduced, the velocity of the upward flow of plasma is altered so that red blood cell aggregates fall faster. Macrocytic red cells with a smaller surface-to-volume ratio also settle more rapidly.

The RBC are held apart from each other due to zeta potential. In all inflammatory conditions including myocardial infarction this zeta ptential is reduced by increased production of fribrinogen. This leads to sticking of RbC together leading to roulex formation which cause increased ESR.

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