HEALTHSTREAM CARDIAC ICU 2023/2024(EXAM TEST)

HEALTHSTREAM CARDIAC ICU 2023/2024(EXAM TEST) The provider orders atenolol (Tenormin) for a new patient. The nurse should question the order after the patient reports that he has: - CORRECT ANSWER-a.) a fast heart rate *b.) acute renal failure c.) asthma d.) hypertension To which of the left ventricle do ECG leads V2-V4 correspond? - CORRECT ANSWER- *a.) anterior b.) anterolateral c.) inferior d.) lateral Which of the following medications causes the greatest increase in myocardial oxygen consumption? - CORRECT ANSWER-a.) amiodarone *b.) dobutamine c.) nitroglycerin d.) norepinephrine Which of the following medications decreases platelet aggregation? - CORRECT ANSWER-a.) adenosine *b.) aspirin c.) nifedipine d.) warfarin To which area of the left ventricle do ECG leads II, III, and aVF correspond? - CORRECT ANSWER-a.) anterior b.) anterolateral *c.) inferior d.) lateral The doctor orders a continuous infusion of diltiazem for a patient. Which of the following hemodynamic effects should the nurse expect to see on the patient's cardiac monitor? - CORRECT ANSWER-a.) decreased CVP, decreased PCWP, increased CO b.) decreased SVR, increased PCWP, decreased CO c.) increased CVP, increased SVR, increased CO d.) increased SVR, decreased PCWP, increased CO When a new patient with unstable angina is being assessed, the nurse should expect to discover: - CORRECT ANSWER-a.) chest pain with activity b.) decreased severity of symptoms c.) elevation of the ST segment *d.) increased frequency of chest pain A 70 - year-old woman is admitted to the CVICU. The nurse's assessment findings reveal jugular vein distention and bilateral clear breath sounds. Her ECG reveals ST segment elevation in leads II, III, and aVF; hemodynamic readings reveal BP 100/70, HR 110, PA 28/12, PCWP 12, CVP 18, CO2 4.4, Cl 2.2. The type of myocardial infarction represented by the ECG changes is? - CORRECT ANSWER-a.) anterior wall *b.) inferior wall c.) lateral wall d.) posterior wall Dopaminergic receptors produce which physiologic effect? - CORRECT ANSWER-a.) bronchodilation b.) increased heart rate and contractility *c.) renal and mesenteric vessel dilation d.) vasoconstriction A patient returns from cath lab with a report of complete occlusion of his LAD artery. This finding may lead to a myocardial infarction of the: - CORRECT ANSWER-*a.) anterior wall b.) inferior wall c.) lateral wall d.) right ventricle A patient was admitted to the CVICU with a diagnosis of acute MI. Her ECG shows STsegment elevation in leads V1, V2, V3, and V4. After she is connected to the cardiac monitor, the nurse assesses that she has third degree heart block. Which of the following interventions will most effectively stabilize her cardiac rhythm? - CORRECT ANSWER-d.) temporary pacemaker Nitrates are beneficial for the treatment of stable angina pectoris because they? - CORRECT ANSWER-b.) dilate the coronary arteries Mrs. Brown is breathing spontaneously, using a nasal cannula with an oxygen flow rate of 3 L/Minute. Her nurse should expect that her hemodynamic waveforms will show: - CORRECT ANSWER-a.) a decrease in waveform pressures during expiration b.) a decrease in waveform pressures during inspiration c.) an increase in wave form pressures during expiration *d.) an increase in waveform pressure during inspiration Preload is defined as: - CORRECT ANSWER-stretch produced within the myocardium at the end of diastole