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Author Question: A patient with traumatic injuries describes his current pain as being unbearable. The ... (Read 61 times)

Yi-Chen

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on: Jul 23, 2018
A patient with traumatic injuries describes his current pain as being unbearable. The pathophysiology of pain begins with a signal from
 
  A) myelin sheaths.
  B) nociceptors.
  C) baroceptors.
  D) synapses.

Question 2

A patient with a traumatic head injury and a diagnosis of diabetes insipidus is being treated with intravenous vasopressin (Pitressin). What change in the patient's status would prompt the immediate cessation of the drug infusion?
 
  A) Infiltration at the IV site
  B) A sudden decrease in urine output
  C) The appearance of blood in the patient's urine
  D) A rapid increase in blood glucose


alexanderhamilton

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Reply #1 on: Jul 23, 2018
Answer to Question 1

B
Feedback:
For a person to feel pain, the signal from nociceptors in peripheral tissues must be transmitted to the spinal cord, then to the hypothalamus and cerebral cortex in the brain. Myelin sheaths, synapses, and baroceptors are not directly involved in pain transmission.

Answer to Question 2

A
Feedback:
When administering vasopressin intravenously, it is essential to use extreme caution due to the risk of extravasation of the medication, leading to tissue necrosis. Decreased urine output is a goal of treatment. Blood in the urine and changes in blood glucose levels are atypical events.


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