EKG Chapter 4 Flashcards

Alternating Current (AC) Inference

• Alternating current (AC) is characterized by the periodic reversal of charge carriers' direction in conductors or semiconductors.

Angle of Louis

• The Angle of Louis is formed at a ridge located approximately one inch below the suprasternal notch, where the main and lower parts of the sternum connect.

Anterior Axillary Line

• This vertical line begins at the front axilla and extends downward along the left side of the chest.

Dextrocardia

• Dextrocardia is a congenital condition where the heart's apex is positioned on the right side of the body instead of the left.

Intercostal Space

• These are the spaces located between adjacent ribs, playing a crucial role in respiratory mechanics.

Midaxillary Line

• The midaxillary line is a vertical line starting from the center of the axilla, extending down the side of the chest.

Midclavicular Line

• This line runs vertically through the center of the heart, providing reference for cardiac examination and procedures.

Midscapular Line

• The midscapular line, or linea scapularis, is a vertical line that passes through the inferior angle of the scapula, essential for anatomical orientation.

Paraspinous Line

• This line is typically found on frontal chest X-rays, representing the interface between the left lung and the left posterior mediastinal tissues; less commonly observed on the right side.

Posterior Axillary Line

• A vertical line that extends downward from the posterior axillary fold, used for anatomical and clinical references.

Seizure

• A seizure is a neurological disturbance where abnormal nerve cell activity occurs in the brain, resulting in various types of seizures.

Somatic Tremor

• Somatic tremor is one of the three types of artifacts in EKG readings, caused by muscle movement; other types include wandering baseline due to electrode issues and AC interference from electrical sources.

Suprasternal Notch

• The suprasternal notch is a prominent anatomical feature in the neck, located between the collarbone and the base of the neck, recognizable by its large dip.

Wandering Baseline

• A wandering baseline occurs when the isoelectric line shifts position, potentially caused by moving cables during an EKG reading.

Test your knowledge with these flashcards covering key terms from Chapter 4 of EKG. Each card presents important definitions and concepts related to electricity and anatomy relevant to EKG interpretation. Perfect for students looking to reinforce their understanding of the material.