After a myocardial infarction, a patient has slowing of atrial contraction. The nurse would anticipate seeing the most evidence of this dysfunction in which part of the electrocardiogram tracing?
1. T wave configuration
2. QRS complex
3. QT interval
4. PR interval
4
Rationale 1: Slowing of atrial contraction does not change the configuration of the T wave.
Rationale 2: The QRS complex may be unchanged.
Rationale 3: The QT interval would show little change.
Rationale 4: The most significant change will be in PR interval, as this time period reflects the contraction of the atria.
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The diabetic patient should
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Which best describes Publix's pricing strategy of providing certain antibiotic medications for no charge?
A. Competitive pricing B. Loss-leader pricing C. Cost + pricing D. Psychological pricing E. Promotional pricing