A Capillary Tube Is Used to Acquire a Small Blood

question 57

Multiple Choice

A capillary tube is used to acquire a small blood sample for CBC (complete blood count) analysis.Suction is not required to transfer the blood from the fingertip prick to the tube in part due to

• A)covalent bonding between the water molecules.
• B)cohesive forces between the glass particles of the tube and the water molecules.
• C)ionic bonding between the water molecules.
• D)adhesive forces between the water molecules and the glass particles of the tube.

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