A medical assistant needs to collect four tubes during a blood draw. Which of the following tubes should be filled last?
Yellow
Light blue
Red
Gray
The Correct Answer is D
A. Yellow: The yellow tube, used for blood cultures, is typically collected first to prevent contamination.
B. Light blue: The light blue tube is used for coagulation studies and should be collected before tubes containing additives that could interfere with coagulation tests.
C. Red: The red tube, which may contain no additives or a clot activator, is usually collected after the light blue tube.
D. Gray: The gray tube is used for glucose testing and should be filled last as it contains additives that could interfere with other tests if collected earlier.
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Correct Answer is A
Explanation
A. Schedule I: This is correct. Schedule I drugs have no accepted medical use and have a high potential for abuse (e.g., heroin, LSD).
B. Schedule II: Schedule II drugs have accepted medical uses but also have a high potential for abuse and dependence (e.g., oxycodone, morphine).
C. Schedule III: Schedule III drugs have accepted medical uses and a lower potential for abuse compared to Schedule II (e.g., ketamine, anabolic steroids).
D. Schedule IV: Schedule IV drugs have accepted medical uses and an even lower potential for abuse (e.g., diazepam, lorazepam).
Correct Answer is C
Explanation
A. Apply ice to the wound: Ice can help with swelling but is not the first-line treatment for controlling bleeding.
B. Lower the affected leg: Elevating the leg is usually recommended, not lowering it, to help control bleeding.
C. Press down firmly over a pressure point: Applying firm pressure to a pressure point can help control hemorrhage by reducing blood flow to the area.
D. Cauterize the wound from the edges to center: Cauterization is not typically a first response in an emergency setting; it is usually performed in a controlled medical environment.