ECG trouble shooting

A series of small uniform spikes on the ECG paper most likely represents

AC Interference

Which of the following are appropriate actions for the ECG technician to take when placing electrodes on a patient's skin for a 24-hour Holter monitor? (Select the three (3) correct answers.)

Avoid scars and incisions, tape the lead wires to the patient's skin, Abrade the skin with an alcohol pad or dry 4X4

The medical assistant is performing a 12-lead ECG on a patient and notices that lead III does not appear on the tracing. Which of the following actions should the medical assistant take?

Check for a loose wire, reconnect, and repeat the tracing.

The physician orders a sedimentation rate for a patient recovering from an infection. This is indicated on the lab requisition as which of the following?

ESR

The ECG technician is preforming an ECG on a patient who is obese, and wandering baseline is present Which of the actions should the technician take? (Select the two (2) correct answers.)

Ensure that new electrodes and clean clips are used. Ensure good skin preparation.

The use of smaller electrodes while running an ECG on a four year old pediatric patient will require which of the following modifications?

Increase the paper speed.

Which of the following tests is required in all 50 states to screen newborns for metabolic disease?

PKU

Which of the following indicates a normal sinus rhythm

PR interval of 0.14 second, QRS complex of 0.10 second, QT interval of 0.40 second and HR of 78

While performing an ECG on a patient, electrodes keep falling off. Which of the following should the medical assistant do? (Select the two (2) correct answers).

Place tape over the wires of the electrodes., Clean the skin with 70% isopropyl.

Placement of the ground lead on an ECG is on the

RL on the soft tissue of the leg.

. After performing an ECG, the medical assistant notices wandering baselines in the precordial leads. Which of the following is the most appropriate next step

Re-evaluate chest leads.

After performing an ECG, the medical assistant notices wandering baselines in the precordial leads. Which of the following is the most appropriate next step

Re-evaluate chest leads.

When educating a patient on how to collect a stool specimen at home, which of the following statements is correct?

The stool specimen should not be contaminated with urine as this can destroy microorganisms in the stool.

A female patient has come in for an ECG following a mastectomy. ECG electrodes should be placed

as close to the surgery site as possible without touching the site

The P wave of an ECG indicates

atrial contraction

Which of the following occurs when a singular irritable impulse fires so rapidly it bombards the AV node, causing V shaped or upside down V shaped waves?

atrial flutter

During an ECG, the right leg provides grounding for which leads

augumented

A patient's urine specimen is noted to be dark yellow with sediment, and has a strong, ammonia-like odor. Which of the following is most likely to be present when processing the specimen?

bacteria

ST segment depression with T wave inversion indicates which of the following arrhythmias?

bundle branch block

The importance of accurate anatomic positioning of leads on a patient when performing an ECG is to

capture true cardiac activity.

Which of the following forms is the medical assistant responsible for having the patient sign when a specimen is being collected for substance abuse screening for employment?

chain-of-custody

To prevent wandering baseline artifact, the ECG technician should ensure the patient is

cleansed with alcohol prep pad

To prevent wandering baseline artifact, the medical assistant should ensure the patient is

cleansed with alcohol prep pads.

In a patient with a heart that deviates to the right of the sternum, the ECG technician should place the precordial leads in which of the following positions?

left to right

From which of the following anatomic structures should a medical assistant collect a specimen for a Rapid Strep Test?

pharynx

The patient reports feeling faint, and slumps forward during a venipuncture. After calling for assistance, which of the following actions should the medical assistant take next?

remove the tourniquet

To correct a wandering baseline, the ECG Technician should

replace loose electrodes

To correct a wandering baseline, the medical assistant should

replace loose electrodes

The physician orders an ECG on a patient with severe burns on his left arm. Which of the following alternate placements should the ECG technician use?

upper limb leads symmetrically placed as close to original site as possible

A multiform of three PVCs in a heart rate above 100 is called

ventricular tachycardia