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.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. Exaggerate lip movements. Exaggerating lip movements can make speech more difficult to understand. Instead, normal, clear speech should be used.
B. Speak in high-pitched tones. High-pitched tones are often harder for individuals with hearing loss to understand. Speaking in a normal, moderate tone is more effective.
C. Use long sentences. Long sentences can be confusing. It is better to use short, simple sentences to aid comprehension.
D. Stand in the patient's direct line of vision. Standing in the patient's direct line of vision allows the patient to read lips and see facial expressions, which aids in understanding.
Correct Answer is B
Explanation
A. Antibiotics: Antibiotics are not controlled substances and do not require a DEA number for prescription.
B. Opioids: Opioids are controlled substances and require a DEA number for prescription due to their potential for abuse and dependence.
C. Antimycotic: Antimycotic drugs, used to treat fungal infections, are not controlled substances and do not require a DEA number.
D. Cathartics: Cathartics, used to induce bowel movements, are not controlled substances and do not require a DEA number.
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