Calculate the initial rate for a Heparin infusion. The infusion is ordered as 18 units/kg/hr. The client weighs 90 kg. The concentration of the Heparin bag is 25,000 units/250 mL. You are administering the Heparin drip via an electronic infusion device. Calculate the infusion rate in mL/hr.

Answer and Explanation

The Correct Answer is ["1.44"]

Step 1: Calculate the total units to be given per hour: 18 × 90 = 1620 units/hour Result = 1620 units/hour

Step 2: Determine the concentration of Heparin in 1 mL: 25000 ÷ 250 = 100 units/mL Result = 100 units/mL

Step 3: Calculate the required volume in mL/hr using total units per hour: (1620 ÷ 100) = 16.2 mL/hr Result = 16.2 mL/hr

Final answer 16.2 mL/hr

Question 47

Calculate the initial bolus of Heparin. Heparin is ordered as 80 units/kg. The client weighs 90 kg. How many mL would you administer using a vial of Heparin labeled Heparin 5000 units/mL?

The correct answer is 1.44 mL

Explanation:

Step 1: Calculate the total number of units required for the bolus: 80 × 90 = 7200 units Result = 7200 units

Step 2: Use the vial concentration to find out how many mL deliver 7200 units: (7200 ÷ 5000) = 1.44 mL Result = 1.44 mL

Final answer 1.44 mL

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Correct Answer is D

Explanation

Choice A reason: Resuming vigorous activity like tennis one week post-pacemaker insertion risks lead dislodgement, as the device requires time to stabilize. Arm movements in tennis, especially overhead swings, can disrupt the pacemaker leads, making this advice unsafe and inappropriate.

Choice B reason: Suggesting hockey or skating as alternatives is incorrect, as these activities also involve significant physical exertion and risk of trauma to the pacemaker site. Additionally, delaying until fall is arbitrary, and these sports do not reduce the risk of lead dislodgement compared to tennis.

Choice C reason: Substituting tennis with basketball or football is inappropriate, as these contact sports pose a higher risk of trauma to the pacemaker site, potentially causing device malfunction or lead dislodgement. These activities are not safer alternatives and could exacerbate complications.

Choice D reason: Restricting arm movement above the head for two weeks post-pacemaker insertion prevents lead dislodgement, as the leads need time to anchor in the heart tissue. Tennis involves vigorous arm motions, so canceling the tournament is necessary to ensure device stability and client safety.

A. Strong or aged cheese should not be eaten while taking them B. Its full therapeutic potential may not be reached until 4-6 weeks C. They should not be given with antianxiety agents D. It may cause hypomania, weight gain, and an increase in sleep

Correct Answer is B

Explanation

Choice A reason: Avoiding strong or aged cheese applies to MAOIs due to tyramine interactions causing hypertensive crises. Most antidepressants, like SSRIs or SNRIs, do not require this dietary restriction, as they do not affect monoamine oxidase, making this information incorrect.

Choice B reason: Antidepressants, such as SSRIs, typically require 4-6 weeks to achieve full therapeutic effects by increasing neurotransmitter levels (serotonin, norepinephrine) in the brain. This delay is critical for patient expectations and adherence, making this the most appropriate information to provide.

Choice C reason: Antidepressants can be safely combined with antianxiety agents, such as benzodiazepines, under medical supervision for co-occurring anxiety and depression. This statement is incorrect, as combination therapy is common and does not require avoidance, depending on the clinical context.

Choice D reason: Hypomania, weight gain, and increased sleep are possible side effects of some antidepressants (e.g., mirtazapine), but they are not universal. SSRIs may cause insomnia or weight loss, making this information less broadly applicable than the therapeutic delay information.

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Calculate the initial rate for a Heparin infusion. The infusion is ordered as 18 units/kg/hr. The client weighs 90 kg. The concentration of the Heparin bag is 25,000 units/250 mL. You are administering the Heparin drip via an electronic infusion device. Calculate the infusion rate in mL/hr.

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Naxlex Comprehensive Predictor Exams

The nurse is caring for a client who is being discharged after insertion of a permanent pacemaker. The client, an avid tennis player, is scheduled to play in a tournament in one week. What teaching should the nurse provide to the client related to this activity?

Correct Answer is D

Explanation

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Correct Answer is B

Explanation

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