Which of the following is most important for the nurse to include with calcium channel blockers?
Always check your apical heart rate before taking this medication
Calcium channel blockers may cause increased blood pressure, so immediately report blurred vision
These medications are best taken at night to reduce cholesterol
Do not drink grapefruit juice while on this medication
The Correct Answer is D
Choice A reason: This choice is incorrect because checking the apical heart rate before taking calcium channel blockers is not necessary for most patients. Calcium channel blockers are a group of medications that relax and widen blood vessels, lower blood pressure, and slow the heart rate. They are used to treat conditions such as hypertension, angina, and arrhythmias. The nurse should check the apical heart rate only if the patient has a history of bradycardia (slow heart rate) or heart block (a problem with the electrical conduction of the heart).
Choice B reason: This choice is incorrect because calcium channel blockers do not cause increased blood pressure, but rather lower it. Blurred vision is not a common side effect of calcium channel blockers, and it may indicate other problems, such as eye infection, glaucoma, or stroke. The nurse should instruct the patient to report any changes in vision, but not to associate them with calcium channel blockers.
Choice C reason: This choice is incorrect because calcium channel blockers do not affect cholesterol levels, and the time of day they are taken does not matter. Cholesterol is a type of fat that circulates in the blood and can build up in the arteries, causing atherosclerosis (hardening and narrowing of the arteries). Cholesterol levels are influenced by diet, exercise, genetics, and other medications, such as statins. The nurse should advise the patient to follow a healthy lifestyle and take any prescribed medications for cholesterol control.
Choice D reason: This choice is correct because grapefruit juice can interact with some calcium channel blockers, such as nifedipine, verapamil, and diltiazem, and increase their blood levels and effects. This can cause serious side effects, such as low blood pressure, dizziness, headache, flushing, and edema (swelling). The nurse should warn the patient to avoid grapefruit juice and any products that contain grapefruit while taking calcium channel blockers.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A reason: How to check apical heart rate is not a priority education for this client. Apical heart rate is the number of heartbeats per minute that can be heard at the apex of the heart. It can be used to monitor the effect of cardiac medications, such as atenolol or digoxin. This client is taking atenolol, but the nurse can check the client's radial pulse (at the wrist) instead of the apical pulse, unless there is a discrepancy or an irregular rhythm. The nurse should teach the client how to check their radial pulse and report any changes or symptoms.
Choice B reason: Signs and symptoms of hypothyroidism are not a priority education for this client. Hypothyroidism is a condition where the thyroid gland does not produce enough thyroid hormones, which regulate the metabolism and energy of the body. Hypothyroidism can cause symptoms such as fatigue, weight gain, cold intolerance, dry skin, hair loss, and depression. This client is not taking any medication that affects the thyroid function, and there is no evidence of hypothyroidism in the client's history or labs. The nurse should assess the client's thyroid function and teach the client about the signs and symptoms of thyroid disorders.
Choice C reason: Bleeding precautions are a priority education for this client. Bleeding precautions are measures to prevent or minimize bleeding in clients who are at risk of bleeding, such as those who are taking anticoagulants, have low platelets, or have bleeding disorders. This client is taking warfarin, an anticoagulant that increases the risk of bleeding.
Choice D reason: Increasing potassium rich foods in the diet is not a priority education for this client. Potassium is a mineral that helps regulate the fluid balance, nerve impulses, and muscle contractions in the body. Potassium levels can be affected by medications, such as diuretics, ACE inhibitors, or potassium supplements. This client is taking captopril, an ACE inhibitor that can increase the potassium level in the blood. The client's potassium level is normal (4.8 mmol/L), and there is no need to increase the intake of potassium rich foods, such as bananas, oranges, potatoes, tomatoes, or beans. The nurse should monitor the client's potassium level and teach the client about the signs and symptoms of high or low potassium, such as muscle weakness, cramps, irregular heartbeat, or numbness.
Correct Answer is ["0.1"]
Explanation
To calculate the dose of darbepoetin that the nurse should administer, we can follow these steps:
Convert the client's weight from pounds to kilograms:
198 lb ÷ 2.2 = 89.82 kg (rounded to two decimal places)
Calculate the dose of darbepoetin:
0.45 mcg/kg × 89.82 kg = 40.41 mcg
Determine the volume of darbepoetin needed using the available concentration:
40.41 mcg ÷ 300 mcg/mL = 0.1347 mL
Rounding to the nearest tenth, the nurse should administer 0.1 mL of darbepoetin subcutaneously once weekly.
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