Which type of current has the highest potential to irritate or damage the skin if used incorrectly?
What will be an ideal response?
Direct current has the strongest polar effects since the current flows in one direction and the duration is relatively long (> 1 sec). The cathode will attract Cl- and H+ ions, which creates an acidic reaction. The anode will attract Na+ and OH- ions, which creates an alkalytic reaction. These chemical reactions will irritate and damage the skin if the DC intensity is too high.
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Which of the following is/are included in the emergency treatment of a CVA?
1) Administer a CNS relaxer. 2) Maintain an open airway. 3) Administer oxygen. 4) Summon medical assistance. a. 1, 2, 3, 4 b. 1, 2, 4 c. 2, 3, 4 d. 1, 3, 4
In preparation for the possibility of surgery, the Paramedic should consider establishing ____ venous access.
A. auxiliary B. large bore C. permanent D. small bore
The term ________ can refer to any instrument that closes over tissue to hold or occlude it
A. necrotic C. histology B. adipose D. clamp
You are attempting to record an ECG for Mr. Potter, a 72-year-old patient who has Parkinson's disease. Knowing this, you automatically place the limb electrodes close to the trunk. However, the tracing looks as shown in the picture. What artifact is present and what can you do to fix it?
A. Extraneous marks; avoid using paper clips on the graph paper B. Somatic interference; wait until Mr. Potter's tremors subside C. wandering baseline; check for loose electrodes D. AC interference; turn off nearby electrical equipment E. Flat line; check pulse and respiration, then begin CPR