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Order: Ampicillin 1 g is added to 50 mL DSW to infuse over 45 minutes. Drop factor: 10 gtt/mL. For IV reconstitute with 10 mL of diluent to get 1 g per 10 mL. (Consider the medication added in the volume of fluid.) Calculate the rate in gtt/min at which the should infuse

A.

18 gtt/min

B.

11 gtt/min

C.

15 gtt/min

D.

13 gtt/min

Answer and Explanation

The Correct Answer is D

Given:
Volume of fluid: 50 mL (DSW) + 10 mL (for reconstitution) = 60 mL
Infusion time: 45 minutes
Drop factor: 10 gtt/mL

Formula:
Flow rate (gtt/min) = (Volume (mL) / Time (min)) x Drop factor (gtt/mL)

Step 1: Calculate the infusion rate in mL/min:
Infusion rate (mL/min) = Volume (mL) / Time (min)
Infusion rate (mL/min) = 60 mL / 45 min
Infusion rate (mL/min) = 1.33 mL/min

Step 2: Calculate the flow rate in gtt/min:
Flow rate (gtt/min) = Infusion rate (mL/min) x Drop factor (gtt/mL)
Flow rate (gtt/min) = 1.33 mL/min x 10 gtt/mL
Flow rate (gtt/min) = 13.3 gtt/min

Step 3: Round to the nearest whole number:
Flow rate (gtt/min) ≈ 13 gtt/min
 


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Related Questions

Correct Answer is D

Explanation

Given:

Ordered dose of Heparin: 9 units/kg/hr

Patient weight: 76 kg

Concentration of Heparin: 50 units/mL

Step 1: Calculate the total dose of Heparin:

Total dose (units/hr) = Ordered dose (units/kg/hr) x Patient weight (kg)

Total dose (units/hr) = 9 units/kg/hr x 76 kg

Total dose (units/hr) = 684 units/hr

Step 2: Calculate the infusion rate in mL/hr:

Infusion rate (mL/hr) = Total dose (units/hr) / Concentration (units/mL)

Infusion rate (mL/hr) = 684 units/hr / 50 units/mL

Infusion rate (mL/hr) = 13.68 mL/hr

Step 3: Round to the nearest tenth:

Infusion rate (mL/hr) ≈ 13.7 mL/hr

Correct Answer is C

Explanation

A) Headache:
Headache is a known side effect of angiotensin receptor blockers (ARBs), such as losartan, valsartan, and olmesartan. These medications can cause headaches due to their vasodilatory effects, which can lead to changes in blood pressure and blood flow. While not everyone will experience this side effect, it is considered relatively common.

B) Dizziness:
Dizziness is another common side effect of ARBs. As ARBs cause vasodilation by blocking the angiotensin II receptors, they can lower blood pressure, leading to dizziness or lightheadedness, especially when standing up quickly. This is particularly noticeable in patients who are elderly or who are on multiple antihypertensive medications.

C) Constipation:
Constipation is not a typical side effect of angiotensin receptor blockers (ARBs). While some medications, especially calcium channel blockers and certain opioid analgesics, are more commonly associated with constipation, ARBs do not have this effect. ARBs primarily affect the vascular system and the kidneys, and constipation is not generally a side effect.

D) Hypotension:
Hypotension (low blood pressure) is a common side effect of ARBs. Since these medications relax blood vessels and decrease blood pressure by blocking the effects of angiotensin II, they can lead to a drop in blood pressure, particularly in the first few days of treatment or when starting therapy. This can result in symptoms like dizziness or fainting, especially when changing positions (postural hypotension).

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