Final answer:
A second-degree heart block type 1, also known as Wenckebach, is characterized by a progressive lengthening of the PR interval on an ECG until a QRS complex is completely omitted. To diagnose and monitor this condition, it is important to check the patient's troponin and CKMB levels, which are markers of cardiac muscle damage.
Step-by-step explanation:
A Wenckebach or second-degree heart block type 1 is a specific type of heart block that occurs in the AV node.
This condition is characterized by a progressive lengthening of the PR interval on the electrocardiogram (ECG) until a QRS complex is completely omitted.
The priority intervention for a patient with this type of heart block is to check their troponin and CKMB levels, which are markers of cardiac muscle damage.