Answered: Choose the letter of the correct…

Principles Of Pharmacology Med Assist

6th Edition

ISBN:9781337512442

Author:RICE

Publisher:RICE

Chapter11: Administration Of Nonparenteral Medications

Section: Chapter Questions

Problem 25RQ

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Question

Choose the letter of the correct answer.

A. Needle is beside the vein

B. Needle is only partially in the vein

C. Needle is partially or completely through the vein

D. Needle is in contact with a valve

E. Needle not inserted far enough

1. When drawing from obese patients, this is a common occurrence. Slowly advance the needle through to correct this problem.

2. Blood flow may be very slow. Anchor the vein to correct this problem and advance the needle slightly.

3. Instead of penetrating the wall, the bevel pushed and slipped past the vein, a phenomenon known as "rolling" This most frequently happens when the vein is not anchored and taut tightly.

4. A small spurt of blood may appear in the hub as the bevel passes through the vein, but no blood flow is established. This occurs when the needle advances too far, too fast, or at an angle that is too steep.

5. A subtle vibration or buzzing sensation may be felt after inserting the needle, impairing blood flow. Withdraw the needle slightly to correct this problem.

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