You are in the process of collecting a specimen by venipuncture. You hear a hissing sound, there is a spurt of blood into the tube, and blood flow stops. What has most likely happened?
a.) Reflux of tube contents
b.) The needle went too deep
c.) The vein has collapsed
d.) Tube vacuum escaped
Answer: d.) Tube vacuum escaped
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The correct level of overall medical decision making is High
Read the following medical decision making documentation, then answer the following questions. Impression: 29-year-old woman well known to this physician returns to the clinic with possible extraesophageal manifestation of GERD. Plan: Chest X-ray ordered to rule out lung congestion or esophageal mass. Upon independent review of X-ray, consider prescription for proton pump inhibitor therapy and change of lifestyle to reduce stress and improve digestion, including eating five small meals throughout day and no food or drink more than 3 hours before bedtime. Follow up in one week. Indicate whether this statement is true or false.
The exchange of oxygen and nutrients for waste products of metabolism occurs at the cellular level in the:
A. capillaries. B. arteries. C. arterioles. D. venules.