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. C-reactive protein (CRP): CRP is typically tested using a serum sample collected in a gold or red-top tube, not a light blue tube.
B. Partial thromboplastin time (PTT): PTT is a coagulation test that requires a light blue top tube containing sodium citrate, which acts as an anticoagulant. This tube is specifically used for coagulation studies.
C. Glucose: Glucose levels are commonly measured using a gray-top tube containing sodium fluoride to inhibit glycolysis, not a light blue tube.
D. Lactate: Lactate levels are typically measured using a gray-top tube or green-top tube, depending on the specific protocol, not a light blue tube.
Correct Answer is D
Explanation
A. Orthopedic: Orthopedic specialists focus on musculoskeletal issues such as bones and joints, not coronary artery disease.
B. Neurology: Neurologists treat neurological disorders affecting the brain and nervous system, not coronary artery disease.
C. Bariatric: Bariatric specialists focus on weight loss and obesity-related conditions, which are not the primary treatment focus for coronary artery disease.
D. Cardiology: Cardiologists specialize in heart conditions, including coronary artery disease, and are the appropriate specialists for managing and treating this condition.
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