Chapter 46: Antianginal Agents #4

A client is diagnosed with erectile dysfunction. He asks what effect sildenafil (Viagra) has because he is taking nitroglycerin for chest pain. What is the best explanation for why nitrates are contraindicated with sildenafil? "The combination can cause a severe decrease in blood pressure." "Nitroglycerine decreases the effect of sildenafil for erectile dysfunction." "Nitroglycerine and sildenafil will diminish the effectiveness of chest pain relief." "Taking the drugs together can lead to prostate cancer."

"The combination can cause a severe decrease in blood pressure."

A client is diagnosed with angina pectoris. What would the nurse include when explaining this condition to the client? "The heart muscle isn't getting enough oxygen." "The heart muscle has become damaged due to blocked blood flow." "The arteries are narrowed due to fatty deposits." "The heart muscle has grown larger to compensate."

"The heart muscle isn't getting enough oxygen."

Mr. Martin, a 52-year-old man, is prescribed amlodipine (Norvasc) for stable angina. What is the reason the physician prescribed this medication? Amlodipine is a calcium channel blocker that decreases the oxygen needs of the heart by a negative inotropic effect. Amlodipine is a calcium channel blocker that increases the oxygen supply to the heart by a positive inotropic effect. Amlodipine is a calcium channel blocker that increases the blood supply to the heart by a positive dromotropic effect. Amlodipine is a calcium channel blocker that decreases the oxygen demands of the heart by a positive chronotropic effect.

Amlodipine is a calcium channel blocker that decreases the oxygen needs of the heart by a negative inotropic effect.

The nurse is preparing to administer a scheduled dose of oral atenolol. Which assessment finding would prompt the nurse to withhold the medication? Select all that apply. Heart rate of 54 beats/min Heart rate of 65 beats/min Oxygen saturation of 90% on room air Blood pressure of 88/49 mm Hg Blood pressure of 141/92 mm Hg

Blood pressure of 88/49 mm Hg Heart rate of 54 beats/min

A client with asthma has been prescribed a beta-blocker for management of angina. For what adverse reaction should the nurse observe? Pleural effusion Hypoglycemia Bronchospasm Pneumonia

Bronchospasm

A client with a history of angina has sustained a mild head injury in a motor vehicle accident. When the client reports chest pain, what explanation should the nurse provide to support the decision not to treat the angina-related pain with nitroglycerin tablets? Nitroglycerin will decrease blood glucose. Nitroglycerin will increase intracranial pressure. Nitroglycerin will cause decreased cerebral edema. Nitroglycerin will raise the client's blood pressure.

Nitroglycerin will increase intracranial pressure.

A patient is using propranolol for treatment of angina. The nurse understands that this drug is administered by which route? Oral Sublingual Intravenous Transdermal

Oral

Which statement correctly distinguishes between the therapeutic effects of sublingual isosorbide and sublingual nitroglycerin? Sublingual isosorbide has a slower onset and a longer duration of action than sublingual nitroglycerin. Sublingual isosorbide has a faster onset and a shorter duration of action than sublingual nitroglycerin. Sublingual isosorbide is not as effective as sublingual nitroglycerin. Sublingual isosorbide has a lesser sustained effect than sublingual nitroglycerin.

Sublingual isosorbide has a slower onset and a longer duration of action than sublingual nitroglycerin.

A recent episode of chest pain while doing yard work prompted a 70-year-old man to seek care and he has been subsequently diagnosed with chronic stable angina. The nurse should recognize what guiding principle in the treatment of this client's angina? The client's angina may necessitate the use of a calcium channel blocker. The client would benefit from a weekly intravenous dose of a beta blocker. The client will likely have a trial of antiplatelet drugs before being prescribed nitrates. The client indicates a need for daily low-molecular weight heparin therapy

The client's angina may necessitate the use of a calcium channel blocker.

When prescribed for angina, how does oral nifedipine achieve a therapeutic effect? potentiating the effect of B-type natriuretic peptide inhibiting the influx of calcium through slow channels. preventing the outflow of intracellular potassium binding extracellular sodium ions with chloride ions

inhibiting the influx of calcium through slow channels.