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EKG Chapter 4
Questions to study
| Question | Answer |
|---|---|
| Somatic tremor artifact is commonly caused by | Patient movement |
| Sixty-cycle interference is commonly caused by | Electrical interference |
| The most common cause for the P wave, QRS complex, and T wave to be inverted in Lead I is | Incorrect lead placement |
| The "gain" setting on the EKG machine is concerned with | The amplitude of the waves and complexes |
| A patient is short of breath and his nurse tells you he must have the head of the bed (HOB) at 90 degrees for his 12-Lead EKG. You | Do the EKG at 90 degrees and document this position on the EKG. |
| Normal paper speed for printing out the EKG is | 25 mm/sec. |
| Electrical shock is LEAST likely to be caused by which of the following? | Properly maintained EKG machine |
| If artifact is present in lead I, II, and AVR, the most likely source of the artifact is on the | Right arm |
| The most important benefit of a three-channel recorder when doing a 12-lead EKG is | All leads can be recorded simultaneously |
| A digital converter on the EKG machine | Converts the analog signal to a digital one |
| Some modern EKG machines are Bluetooth-capable, allowing EMS workers to | Transmit the EKG to the nearest hospital so workers can prepare for the patient's arrival |
| On your patient's 12-lead EKG, lead I's waves and complexes are completely negative. AVR's waves and complexes are completely positive. The most likely cause of this is | Right and left arm leads inadvertently reversed |
| Your patient for a 12-lead EKG has no legs as a result of bilateral amputations. Where should you put the leg electrode? | On the lower abdomen above where the legs would be |
| Your patient is having chills. What kind of artifact can this produce? | Somatic Tremors |
| If there is artifact in leads II, III, and aVF, on which limb(s) would you expect to find the cause of the artifact? | Left leg |
| Your patient is smiling and visiting family, but the cardiac monitor shows that the patient's heart has completely stopped. The rhythm on the monitor is thus | Artifact |
| The artifact cause by the jiggling of wires doing tooth-brushing is called | "Toothbrush Tachycardia" |
| If your patient's cardiac rhythm is life-threatening, your FIRST action should be to | Check the patient- assess vital signs and see how he/she feels |
| Muscle artifact can be minimized by monitoring the patient in lead | V1 or MCL1 |
| Muscle artifact is seen most often in | The frontal leads |
| Microshock is different from macroshock in that microshock is | A lower-voltage electrical shock |
| Electrically speaking, the heart is | transmitter |
| To minimize artifact, what must be done? | Attach electrode patches securely and tell the patient not to move during the EKG |
| Small adhesive patches with conductive gel on the skin side are | Electrodes |
| If artifact is seen in leads I, III, and aVL, the problem is on which limb? | Left arm |
Created by:
A.Vaughn340