Nokea
A patient presents to the walk-in clinic complaining of intermittent chest pain on exertion, which is eventually attributed to angina. The nurse should inform the patient that angina is most often attributable to what cause?
- A. Decreased cardiac output
- B. Decreased cardiac contractility
- C. Infarction of the myocardium
- D. Coronary arteriosclerosis
Correct Answer: D
Rationale: In most cases, angina pectoris is due to arteriosclerosis. The disease is not a result of impaired cardiac output or contractility. Infarction may result from untreated angina, but it is not a cause of the disease.
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The nurse is caring for a patient who is scheduled for cardiac surgery. What should the nurse include in preoperative care?
- A. With the patient, clarify the surgical procedure that will be performed
- B. Withhold the patients scheduled medications for at least 12 hours preoperatively
- C. Inform the patient that health teaching will begin as soon as possible after surgery
- D. Avoid discussing the patients fears as not to exacerbate them
Correct Answer: A
Rationale: Preoperatively, it is necessary to evaluate the patients understanding of the surgical procedure, informed consent, and adherence to treatment protocols. Teaching would begin on admission or even prior to admission. The physician would write orders to alter the patients medication regimen if necessary; this will vary from patient to patient. Fears should be addressed directly and empathically.
Preoperative education is an important part of the nursing care of patients having coronary artery revascularization. When explaining the pre- and postoperative regimens, the nurse would be sure to include education about which subject?
- A. Symptoms of hypovolemia
- B. Symptoms of low blood pressure
- C. Complications requiring graft removal
- D. Intubation and mechanical ventilation
Correct Answer: D
Rationale: Most patients remain intubated and on mechanical ventilation for several hours after surgery. It is important that patients realize that this will prevent them from talking, and the nurse should reassure them that the staff will be able to assist them with other means of communication. Teaching would generally not include symptoms of low blood pressure or hypovolemia, as these are not applicable to most patients. Teaching would also generally not include rare complications that would require graft removal.
A patient who is postoperative day 1 following a CABG has produced 20 mL of urine in the past 3 hours and the nurse has confirmed the patency of the urinary catheter. What is the nurses most appropriate action?
- A. Document the patients low urine output and monitor closely for the next several hours
- B. Contact the dietitian and suggest the need for increased oral fluid intake
- C. Contact the patients physician and suggest assessment of fluid balance and renal function
- D. Increase the infusion rate of the patients IV fluid to prompt an increase in renal function
Correct Answer: C
Rationale: Nursing management includes accurate measurement of urine output. An output of less than 1 mL/kg/h may indicate hypovolemia or renal insufficiency. Prompt referral is necessary. IV fluid replacement may be indicated, but is beyond the independent scope of the dietitian or nurse.
The nurse is working with a patient who had an MI and is now active in rehabilitation. The nurse should teach this patient to cease activity if which of the following occurs?
- A. The patient experiences chest pain, palpitations, or dyspnea
- B. The patient experiences a noticeable increase in heart rate during activity
- C. The patients oxygen saturation level drops below 96%
- D. The patients respiratory rate exceeds 30 breaths/min
Correct Answer: A
Rationale: Any activity or exercise that causes dyspnea and chest pain should be stopped in the patient with CAD. Heart rate must not exceed the target rate, but an increase above resting rate is expected and is therapeutic. In most patients, a respiratory rate that exceeds 30 breaths/min is not problematic. Similarly, oxygen saturation slightly below 96% does not necessitate cessation of activity.
A nurse is working with a patient who has been scheduled for a percutaneous coronary intervention (PCI) later in the week. What anticipatory guidance should the nurse provide to the patient?
- A. He will remain on bed rest for 48 to 72 hours after the procedure
- B. He will be given vitamin K infusions to prevent bleeding following PCI
- C. A sheath will be placed over the insertion site after the procedure is finished
- D. The procedure will likely be repeated in 6 to 8 weeks to ensure success
Correct Answer: C
Rationale: A sheath is placed over the PCI access site and kept in place until adequate coagulation is achieved. Patients resume activity a few hours after PCI and repeated treatments may or may not be necessary. Anticoagulants, not vitamin K, are administered during PCI.