Cardiology ECG Quiz

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Questions and Answers

Which of the following conditions may present with a wandering atrial pacemaker (WAP)?

Cardiovascular disease and metabolic disorder (correct)

Congestive heart failure and hypertension (correct)

Organic heart disease and drug toxicity (correct)

Neurological disorders and renal insufficiency (correct)

What is the normal, inherent rate of the AV node?

40 to 60 bpm (correct)

100 to 150 bpm

80 to 100 bpm

20 to 40 bpm

Where does the electrical current initiate in junctional rhythms?

Ventricles

Atria

Bundle of His

AV junction (correct)

What causes the inverted P wave morphology found with junctional rhythms?

Electrical impulses are coming from the AV node Signup and view all the answers

What is indicated by the term 'retrograde' in cardiac rhythms?

Backward Signup and view all the answers

What does a patient mean when they describe a fast, 'fluttering' heartbeat sensation?

Palpitation Signup and view all the answers

What primarily causes a heart block dysrhythmia?

Ectopic focus above the ventricles Signup and view all the answers

Which of the following best identifies the rhythm associated with multifocal atrial tachycardia?

A distinct atrial rhythm with varying P waves Signup and view all the answers

What leads form the Einthoven triangle?

right arm, left arm, right leg Signup and view all the answers

Where should the V1 lead be placed?

fourth intercostal space, left sternal border Signup and view all the answers

Which two leads must be placed before positioning V3?

V2 and V4 Signup and view all the answers

Which method is appropriate for calculating heart rate in cases of irregular rhythms?

6-second method Signup and view all the answers

What heart rate calculation method is used when counting the number of R-R intervals?

R-R method Signup and view all the answers

Using the 6-second method, what would a heart rate be if the strip shows 10 QRS complexes?

100 bpm Signup and view all the answers

What does a pattern with every third complex being a premature beat signify?

trigeminy Signup and view all the answers

Where is the V2 lead placed on the patient's chest?

fourth intercostal space, left sternal border Signup and view all the answers

Which factors are primarily evaluated when classifying dysrhythmias?

Waves, segments, and intervals on the ECG tracing Signup and view all the answers

What does the QRS duration measurement indicate?

Ventricular depolarization Signup and view all the answers

Why is the shape of the P wave important in an ECG analysis?

To check if all atrial current is moving in the same pathway Signup and view all the answers

What is the normal range for the PR interval measurement?

0.12 to 0.20 second Signup and view all the answers

What is the typical duration range for a normal QRS complex?

0.12 to 0.20 second Signup and view all the answers

What is considered a normal sinus rhythm rate?

60 to 100 bpm Signup and view all the answers

Which sinus rhythm is characterized by a rate of less than 60 beats per minute?

Sinus bradycardia Signup and view all the answers

In which type of rhythm can you find characteristics typical of sinus bradycardia?

Sinus bradycardia Signup and view all the answers

Which heart blocks exhibit irregular ventricular response?

Second-degree heart blocks Signup and view all the answers

Where should the V4 lead be placed while applying chest leads?

At the fourth ICS, left sternal border Signup and view all the answers

In which blood collection tube would a platelet function test be conducted?

Sodium citrate Signup and view all the answers

What anticoagulant additive is present in a lavender-stoppered evacuated blood collection tube?

Ethylenediaminetetraacetic acid Signup and view all the answers

Where is the V2 lead placed when applying chest leads?

At the fourth ICS, right sternal border Signup and view all the answers

If a discard tube is required prior to coagulation testing, which type is appropriate?

Plain tube with no additives Signup and view all the answers

Which form of ectopic conduction originates in the atrium?

Originates from the right or left atrium Signup and view all the answers

What is the primary function of anticoagulants in blood collection tubes?

To prevent coagulation Signup and view all the answers

What is the anticoagulant present in a gray-stoppered blood collection tube?

Sodium fluoride Signup and view all the answers

Which agent serves as the antiglycolytic agent in a gray-stoppered blood collection tube?

Sodium fluoride Signup and view all the answers

Which of the following tubes contains lithium heparin and a thixotropic gel?

Light green Signup and view all the answers

For a STAT prothrombin time test, which color tube should be collected?

Light blue Signup and view all the answers

What is the recommended height to apply a tourniquet above the puncture site?

2-3 inches Signup and view all the answers

Which color tube is appropriate for collecting a complete metabolic panel (CMP)?

Gold Signup and view all the answers

What is the typical concentration of isopropyl alcohol in alcohol pads?

70% Signup and view all the answers

What would be the 5th tube collected in the order of draw for a routine venipuncture?

PST Signup and view all the answers

Study Notes

EKG Multiple Choice Highlights

Classification of dysrhythmias involves evaluating rate, artifact, and ECG complex characteristics.
QRS duration measures the time for ventricular depolarization.
The shape of the P wave helps confirm that atrial depolarization occurred and determines current pathways.
Normal PR interval ranges from 0.12 to 0.20 seconds.
QRS complex duration is normally less than 0.12 seconds.
Normal sinus rhythm heart rate ranges from 60 to 100 bpm.
Sinus bradycardia is characterized by a heart rate below 60 bpm.
Sinus tachycardia is identified by an increased heart rate.
A patient with sinus bradycardia may require medication or a pacemaker.
The Einthoven triangle includes right arm, left arm, and left leg leads.
V1 lead is placed at the 4th intercostal space, left sternal border.
Proper placement of V3 requires leads V2 and V4.
V2 lead is placed at the 4th intercostal space, left sternal border.
For irregular rhythms, the only method for heart rate calculation is the 6-second method.
Identifying patterns, trigeminy refers to every third complex being a premature beat.

Phlebotomy Multiple Choice Highlights

Lavender-stoppered tubes contain ethylenediaminetetraacetic acid as an anticoagulant.
For platelet function tests, use a sodium citrate tube.
An appropriate discard tube for coagulation tests is a red non-additive tube.
Gray-stoppered tubes contain sodium fluoride as the anticoagulant and potassium oxalate as the antiglycolytic agent.
Light green-stoppered tubes contain lithium heparin and a thixotropic gel.
A plasma separator tube (PST) is typically a light green tube.
Alcohol pads generally contain 70% isopropyl alcohol.
For STAT prothrombin time tests, use a light blue tube.
The 5th tube in the order of draw for routine venipuncture is usually lavender.
Apply a tourniquet 4-5 inches above the puncture site for venipuncture.
The complete metabolic panel (CMP) should be collected in a gold tube.

Additional Notes

For collecting blood samples from an infant's heel for bilirubin tests, specific containers with appropriate additives must be utilized.

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Description

Test your knowledge on cardiology principles and ECG lead placements. This quiz covers topics such as treatment options and proper lead positioning for cardiac monitoring. Ideal for medical students or healthcare professionals.