A student nurse is measuring the PR interval on an atrial flutter rhythm and knows that which of the following is the expected PR interval for this rhythm?
a. Not measurable
b. 0.16 seconds
c. 0.04 seconds
d. 0.24 seconds
a. Not measurable
rationale: The PR interval is not measurable with atrial flutter because PR intervals are absent.
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An older patient is diagnosed with hemolytic anemia. What will the nurse teach the patient about this disorder?
1. It is caused by blood loss. 2. It will be treated with folic acid. 3. It causes the red blood cells to be misshaped. 4. It is associated with a drop in the number of immature red blood cells produced.
What can a nurse researcher use to restrict the study population to homogeneous groups of subjects?
a. Sampling b. Self-selection c. Eligibility criteria d. Defining study limitations
When you read a 12-lead ECG from left to right, the ECG tracing is continuous
Indicate whether the statement is true or false
Florence Nightingale was a:
a. model for all nurses. b. nurse. c. statistician. d. social reformer. e. all of the above.