Which of the following techniques should a medical assistant use when inserting a needle for venipuncture?
Bevel up with a 45° angle
Bevel down with a 45° angle
Bevel up with a 15° angle
Bevel down with a 15° angle
The Correct Answer is C
A. Bevel up with a 45° angle: A 45° angle is too steep for venipuncture; this angle is typically used for intramuscular injections.
B. Bevel down with a 45° angle: Bevel down is incorrect for venipuncture as it increases the risk of the needle piercing through the vein.
C. Bevel up with a 15° angle: This is the correct technique for venipuncture. The needle should be inserted at a 15° to 30° angle, with the bevel facing up to ensure smooth entry into the vein and minimize discomfort.
D. Bevel down with a 15° angle: Bevel down is not recommended for venipuncture because it can cause the needle to catch on the vein wall, increasing the risk of injury or complications.
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Naxlex Comprehensive Predictor Exams
Related Questions
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.
Correct Answer is C
Explanation
A. Pleura: Pleura refers to the membranes surrounding the lungs, not fingers or toes.
B. Plexus: Plexus refers to a network of nerves or vessels in the body, not fingers or toes.
C. Phalanges: Phalanges are the correct term for the bones in the fingers and toes. This is the correct plural form of the term.
D. Pharynges: Pharynges is the plural form of pharynx, which refers to the part of the throat behind the mouth and nasal cavity, not fingers or toes.
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