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.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. Sitting behind a desk and looking at the computer: This posture may appear distant and disinterested, as it creates a physical barrier and lacks engagement.
B. Sitting on the edge of a chair and leaning forward: This body language conveys attentiveness and engagement, indicating care and interest in the conversation with the patient.
C. Standing across the room. Standing across the room can seem impersonal and distant, which may not effectively communicate care and interest.
D. Standing over the patient: Standing over the patient can be intimidating and may convey dominance rather than care and support.
Correct Answer is C
Explanation
A. Exposure to a mosquito bite: Hepatitis B is not transmitted through mosquito bites. It is primarily transmitted through contact with infected body fluids, particularly blood.
B. Consumption of raw shellfish: Hepatitis A, not Hepatitis B, can be contracted through the consumption of contaminated food or water, including raw shellfish.
C. Blood splashes to the mucous membranes: Hepatitis B can be transmitted through exposure to infected blood or body fluids, including splashes to mucous membranes (e.g., eyes, mouth).
D. Direct skin contact with a patient who is infected: Hepatitis B is not transmitted through casual skin contact. It requires contact with infected body fluids.
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