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A critical care nurse is caring for a patient with a hemodynamic monitoring system in place. For what complications should the nurse assess? Select all that apply.
- A. Pneumothorax
- B. Infection
- C. Atelectasis
- D. Bronchospasm
- E. Air embolism
Correct Answer: A,B,E
Rationale: Complications from use of hemodynamic monitoring systems are uncommon, but can include pneumothorax, infection, and air embolism. Complications of hemodynamic monitoring systems do not include atelectasis or bronchospasm.
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The cardiac care nurse is reviewing the conduction system of the heart. The nurse is aware that electrical conduction of the heart usually originates in the SA node and then proceeds in what sequence?
- A. SA node to bundle of His to AV node to Purkinje fibers
- B. SA node to AV node to Purkinje fibers to bundle of His
- C. SA node to bundle of His to Purkinje fibers to AV node
- D. SA node to AV node to bundle of His to Purkinje fibers
Correct Answer: D
Rationale: The normal electrophysiological conduction route is SA node to AV node to bundle of His to Purkinje fibers.
A patient with a complex cardiac history is scheduled for transthoracic echocardiography. What should the nurse teach the patient in anticipation of this diagnostic procedure?
- A. The test is noninvasive, and nothing will be inserted into the patients body
- B. The patients pain will be managed aggressively during the procedure
- C. The test will provide a detailed profile of the hearts electrical activity
- D. The patient will remain on bed rest for 1 to 2 hours after the test
Correct Answer: A
Rationale: Before transthoracic echocardiography, the nurse informs the patient about the test, explaining that it is painless. The test does not evaluate electrophysiology and bed rest is unnecessary after the procedure.
A nurse is preparing a patient for scheduled transesophageal echocardiography. What action should the nurse perform?
- A. Instruct the patient to drink 1 liter of water before the test
- B. Administer IV benzodiazepines and opioids
- C. Inform the patient that she will remain on bed rest following the procedure
- D. Inform the patient that an access line will be initiated in her femoral artery
Correct Answer: C
Rationale: During the recovery period, the patient must maintain bed rest with the head of the bed elevated to 45 degrees. The patient must be NPO 6 hours preprocedure. The patient is sedated to make him or her comfortable, but will not be heavily sedated, and opioids are not necessary. Also, the patient will have a peripheral IV line initiated preprocedure.
A resident of a long-term care facility has complained to the nurse of chest pain. What aspect of the residents pain would be most suggestive of angina as the cause?
- A. The pain is worse when the resident inhales deeply
- B. The pain occurs immediately following physical exertion
- C. The pain is worse when the resident coughs
- D. The pain is most severe when the resident moves his upper body
Correct Answer: B
Rationale: Chest pain associated with angina is often precipitated by physical exertion. The other listed aspects of chest pain are more closely associated with noncardiac etiologies.
The critical care nurse is caring for a patient who has been experiencing bradycardia after cardiovascular surgery. The nurse knows that the heart rate is determined by myocardial cells with the fastest inherent firing rate. Under normal circumstances where are these cells located?
- A. SA node
- B. AV node
- C. Bundle of His
- D. Purkinje cells
Correct Answer: A
Rationale: The heart rate is determined by the myocardial cells with the fastest inherent firing rate. Under normal circumstances, the SA node has the highest inherent rate (60 to 100 impulses per minute).