An Instrument Printout Reports a Platelet Count of 85x 109/L

question 39

Multiple Choice

An instrument printout reports a platelet count of 85x 109/L.The technologist reviewing the peripheral blood smears notices aggregates of platelets around many of the neutrophils.What is the best course of action to correct this problem?

• A)Warm the specimen for 10 min at 45°C and rerun the sample.
• B)Centrifuge and rerun the sample.
• C)Remake the smear and use alkaline buffer to stain the slide.
• D)Redraw the sample in sodium citrate and repeat the platelet count.

Understand the mechanisms that can create discrepancies between gene histories and species histories.

Recognize molecular evidence for the evolutionary relationships among species, including humans.

Identify the patterns supporting hypotheses of disease transmission in phylogenetics.

Understand the impact of population size changes on genetic events.

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Definitions:

Pinocytosis

A form of endocytosis where a cell engulfs liquid containing dissolved substances into a vesicle.

Phagocytosis

The process by which cells engulf and digest solid substances, like bacteria or damaged cell components.

Active Process

involves energy expenditure by the cell to perform tasks such as transporting molecules against a concentration gradient.

Randomized Block Design

A type of experimental design that aims to reduce the effects of confounding variables by grouping subjects into blocks before randomly assigning treatments within these blocks.