RGT 2542 Ch 6
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Which of the following would not be a risk factor for extravasation?
A. The use of metal needles in place of plastic catheters
B. Venous thrombosis
C. Abnormal circulation caused by atherosclerotic vessels
D. Tourniquets not being released during the injection
The anatomic/physiologic structure that prevents various chemicals and other harmful substances from passing to the central nervous system from the blood is called the:
B. Dura mater
C. Blood-brain barrier
The basic structure that is used to create most of the organic iodide contrast agents is:
Which of the following are considered to be an activation triggering type of reaction?
2. Thrombus formation
A. 1 only
B. 1 & 2
C. 2 & 3
D. All 3
The excretory pathway for the majority of the organic iodide compounds is through the:
A. Respiratory system
B. Process of defecation
C. Urinary system
D. Hepatic portal system
Which of the following is not a characteristic of informed consent?
A. Full disclosure to the patient of the risks involved
B. Competency of the patient
C. Authorization of the procedure by the patient
D. Usually done after the procedure is completed
The process of making a metal ion useful without the probability of it binding to the tissues in the body is called:
As the iodine concentration _____, the viscosity of the substance will ____.
A. Increase, decrease
B. Increase, increase
C. Decrease, increase
D. Decrease, remain unchanged
Osmolarity of a solution refers to the _____ of the solution.
Renal insufficiency is indicated if the BUN exceeds ____ mg/dl and the creatinine is above ____ mg/dl.
A. 10, 0.15
B. 15, 0.30
C. 20, 1.5
D. 30, 1.5
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