Order: Metoprolol 3.5 mg IV push
On hand: 1 mg/mL vials
How many milliliters will the nurse draw up to administer this dose?
No answer is provided
No answer is too low
No answer is too high
3.5
The Correct Answer is D
Choice A reason: This choice is incorrect because it does not provide a numerical answer to the question.
Choice B reason: This choice is incorrect because it does not provide a specific answer to the question. It also implies that there is an answer that is lower than the correct one, which is not true.
Choice C reason: This choice is incorrect because it does not provide a specific answer to the question. It also implies that there is an answer that is higher than the correct one, which is not true.
Choice D reason: This choice is correct because it is the result of dividing the ordered dose (3.5 mg) by the concentration of the vial (1 mg/mL). The formula for calculating the volume to be drawn up is:
Volume = Dose/Concentration
Therefore, the volume to be drawn up is:
Volume = 3.5 mg/(1 mg/mL) = 3.5 mL
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A reason: This is incorrect because labetalol is a safe and effective medication for treating hypertension in pregnancy. Labetalol is a beta-blocker that lowers blood pressure by reducing the heart rate and the force of contraction. It does not affect the blood flow to the placenta or the fetus.
Choice B reason: This is incorrect because labetalol is not contraindicated for smokers. However, smoking is a risk factor for cardiovascular disease and should be discouraged by the nurse. Smoking can increase blood pressure, heart rate, and the risk of blood clots.
Choice C reason: This is correct because labetalol is contraindicated for clients with a history of uncontrolled asthma. Labetalol is a non-selective beta-blocker that can block the beta-2 receptors in the lungs and cause bronchoconstriction. This can worsen asthma symptoms and trigger an asthma attack.
Choice D reason: This is incorrect because labetalol is a suitable medication for clients who had a myocardial infarction. Labetalol can prevent further damage to the heart muscle by reducing the oxygen demand and the workload of the heart. It can also prevent arrhythmias and angina.
Correct Answer is ["A","B","E"]
Explanation
Choice A reason: Captopril is an ACE inhibitor, which means it blocks the enzyme that converts angiotensin I to angiotensin II, a hormone that constricts blood vessels and raises blood pressure. Captopril is used to treat high blood pressure, heart failure, diabetic kidney disease, and some types of heart attack. ¹
Choice B reason: Lisinopril is also an ACE inhibitor, with similar effects and uses as captopril. Lisinopril may be preferred over captopril because it has a longer duration of action and fewer side effects. ²
Choice C reason: Atenolol is not an ACE inhibitor, but a beta blocker, which means it blocks the receptors for adrenaline and noradrenaline, hormones that increase heart rate and blood pressure. Atenolol is used to treat high blood pressure, angina, irregular heartbeat, and prevent heart attack and stroke. ³
Choice D reason: Labetalol is also not an ACE inhibitor, but a combination of alpha and beta blocker, which means it blocks both the receptors for adrenaline and noradrenaline, and the receptors for angiotensin II. Labetalol is used to treat high blood pressure, especially in pregnancy and hypertensive emergencies.
Choice E reason: Ramipril is another ACE inhibitor, with similar effects and uses as captopril and lisinopril. Ramipril may have additional benefits in preventing cardiovascular events and kidney damage in high-risk patients..
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