Nokea
The nurse explains that electrocardiograms are graphic representations of electric impulses generated by the heart. What type of abnormalities can an electrocardiogram identify?
- A. Those that produce a cardiac cycle
- B. Those that interfere with electric conduction
- C. Those that result from an interrupted blood flow
- D. Those that interfere with heart contraction
Correct Answer: B
Rationale: Electrocardiograms identify abnormalities that interfere with electric conduction.
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A sputum specimen is ordered on a patient diagnosed with pneumonia. When is the best time for the nurse to attempt to collect this specimen?
- A. At bedtime
- B. After lunch
- C. In the early morning
- D. After breakfast
Correct Answer: C
Rationale: Early morning before a meal is the best time to collect a sputum specimen.
What is the term for the cleanest part of a voided urine specimen that is collected after voiding is initiated and before it is finished?
- A. Sterile specimen
- B. "Caught" specimen
- C. Midstream specimen
- D. Patient-collected specimen
Correct Answer: C
Rationale: A midstream urine specimen is collected after voiding is initiated and before it is completed.
The nurse has an order to perform occult blood testing on a patient's emesis. What color will the sample turn to indicate that the test is positive for occult blood?
- A. Red
- B. Blue
- C. Green
- D. Yellow
Correct Answer: B
Rationale: If the sample turns blue, the test is positive for occult blood; if it turns green, it is negative for occult blood.
Following a liver biopsy the nurse should observe for hemorrhage and ensure that the patient is kept on bed rest for 24 hours. How should the nurse keep the patient for the first 1 to 2 hours?
- A. On his or her left side
- B. On his or her back
- C. On his or her right side
- D. In high Fowler's position
Correct Answer: C
Rationale: The nurse should keep the patient on his or her right side for 1 to 2 hours.
What should the nurse assess the patient for before administration of contrast media?
- A. Has been NPO.
- B. Is allergic to iodine.
- C. Has emptied the bladder.
- D. Has taken medication.
Correct Answer: B
Rationale: The patient should always be assessed for allergies to iodine before administration of contrast media.