A nurse is reviewing the electrocardiogram (ECG) results. Which portion of the conduction system does the nurse consider when evaluating the P wave?
SA node
AV node
Bundle of His
Purkinje fibers
The Correct Answer is A
A. The P wave represents atrial depolarization, which is initiated by the SA node, the heart's natural pacemaker.
B. The AV node is responsible for conducting impulses from the atria to the ventricles but does not initiate the P wave.
C. The Bundle of His transmits the electrical impulses to the ventricles but is not directly associated with the P wave.
D. Purkinje fibers are involved in ventricular depolarization, which corresponds to the QRS complex, not the P wave.
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Correct Answer is C
Explanation
A. Competent nurses have typically worked in a specific area for 2-3 years, developing an understanding of patient care specific to that field.
B. Proficient nurses have advanced understanding and experience, allowing them to see care situations as whole parts rather than in separate steps.
C. In a new specialty area, the nurse is considered a novice, as they lack experience and expertise in obstetrics despite previous nursing experience.
D. Advanced beginners have some experience but still need support; however, this would apply only if the nurse had some previous obstetric experience.
Correct Answer is D
Explanation
A. Assessment has already been completed as the initial step, involving data collection.
B. Diagnosis is also completed, involving analysis and identification of the patient’s health problems.
C. Implementation occurs after planning, when nursing interventions are executed.
D. Planning is the appropriate next step, involving the creation of specific, measurable goals and interventions based on the identified nursing diagnoses.