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To calculate the rate in mL/hr for the nitroglycerin infusion, you can use the following formula:

Rate (mL/hr) = (Dose (mcg/min) / Concentration (mcg/mL)) × 60 (min/hr)

Let's plug in the values:

• Dose (mcg/min) = 42 mcg/min
• Concentration (mcg/mL) = 125 mg in 500 mL = (125,000 mcg in 500 mL) = 250 mcg/mL

Now, calculate the rate:

Rate (mL/hr) = (42 mcg/min / 250 mcg/mL) × 60 min/hr

Rate (mL/hr) = (0.168 mL/min) × 60 min/hr

Rate (mL/hr) = 10.08 mL/hr

Rounded to the nearest tenth, the nurse should program the IV pump to deliver the nitroglycerin at a rate of 10.1 mL/hr.

To calculate the dosage of fosphenytoin for a 57 kg client at a rate of 0.5 mg/kg, you can use the following formula:

Dosage (mg) = Weight (kg) × Dosage per kg (mg/kg)

Dosage (mg) = 57 kg × 0.5 mg/kg

Dosage (mg) = 28.5 mg

The dosage that needs to be administered to the client is 28.5 mg.

To set up the IV pump to deliver Zofran (ondansetron) 0.15 mg/kg over 15 minutes for a patient weighing 176 lb, you'll need to convert the patient's weight to kilograms first, as the medication dosage is typically based on kilograms.

Convert the patient's weight from pounds to kilograms:
Patient's weight in kg = Patient's weight in lb / 2.2046
Patient's weight in kg = 176 lb / 2.2046 Patient's weight in kg ≈ 79.83 kg (rounded to two decimal places)

Calculate the total dose of ondansetron:
Dosage (mg) = Weight (kg) × Dosage per kg (mg/kg) Dosage (mg) = 79.83 kg × 0.15 mg/kg
Dosage (mg) ≈ 11.975 mg (rounded to three decimal places)

Determine the infusion time in hours:
Infusion time (hr) = 15 minutes / 60 minutes (since there are 60 minutes in 1 hour) Infusion time (hr) = 0.25 hr

Calculate the infusion rate (mL/hr):
Infusion rate (mL/hr) = Total volume (mL) / Infusion time (hr) Infusion rate (mL/hr) = 50 mL / 0.25 hr Infusion rate (mL/hr) = 200 mL/hr

So, the nurse should set the IV pump to deliver the correct dose at a rate of 200 mL/hr to infuse Zofran (ondansetron) 0.15 mg/kg over 15 minutes for the patient weighing 176 lb.

To determine the milligrams per minute the patient should receive, you can use the following calculation:

Total dosage (mg) / Total time (minutes)

In this case, the total dosage is 5 mg, and the total time is 2 minutes.

5 mg / 2 minutes = 2.5 mg per minute

So, the patient should receive 2.5 mg per minute of IV Lopressor (metoprolol tartrate).

This statement is correct, which makes it the preferred site for many people. However, the other choices incorrectly suggest reasons for this preference. The steady absorption from the abdomen is due to the consistent blood supply and tissue characteristics in this area.

To calculate the number of milliliters per minute the nurse should administer, you can set up a proportion based on the ordered dose and the concentration of the medication:

1 mL (containing 1 mg) is administered in 60 seconds (1 minute).

Now, you want to find out how many milliliters (mL) you need to administer for 5 mg in 60 seconds (1 minute).

Let's set up the proportion:

(1 mL / 1 mg) = (X mL / 5 mg)

To solve for X (the number of milliliters per minute):

X = (5 mg * 1 mL) / 1 mg = 5 mL / 1 = 5 mL

So, the nurse should administer 5 milliliters per minute to the patient.

To calculate the number of hours it will take to finish the infusion at the current rate, you can use the following formula:

Time (hours) = Volume (mL) / Rate (mL/hr)

In this case, the volume is 1.5 L, which is equivalent to 1500 mL, and the rate is 75 mL/hr.

Now, plug these values into the formula:

Time (hours) = 1500 mL / 75 mL/hr

Time (hours) = 20 hours

So, it will take 20 hours to finish the infusion at the current rate.

To calculate the total amount of heparin received by the patient, you need to consider the infusion rates and the duration of the infusion.

From 9:00 am to 11:00 am, the infusion rate is 12 mL/hr, and the duration is 2 hours (from 9:00 am to 11:00 am).

12 mL/hr * 2 hours = 24 mL

From 11:00 am to 2:00 pm, the infusion rate is 10 mL/hr, and the duration is 3 hours (from 11:00 am to 2:00 pm).

10 mL/hr * 3 hours = 30 mL

Now, you know the total volume infused during each time period. To calculate the total amount of heparin received, you need to convert milliliters to units based on the concentration of heparin in the solution.

The concentration is 25,000 units in 250 mL. So, 1 mL contains 100 units of heparin.

Now, calculate the total amount of heparin received:

From 9:00 am to 11:00 am: 24 mL * 100 units/mL = 2400 units

From 11:00 am to 2:00 pm: 30 mL * 100 units/mL = 3000 units

Now, add these amounts together:

2400 units + 3000 units = 5400 units

The patient received a total of 5400 units of heparin from 9:00 am to 2:00 pm.

To calculate the volume (mL) of Morphine sulfate 5 mg/mL that should be administered to deliver 10 mg of Morphine sulfate, you can use the following formula:

Volume (mL) = Required dose (mg) / Concentration (mg/mL)

In this case:
Required dose = 10 mg Concentration = 5 mg/mL

Now, plug these values into the formula:
Volume (mL) = 10 mg / 5 mg/mL
Volume (mL) = 2 mL

You should administer 2 mL of Morphine sulfate 5 mg/mL to deliver the ordered dose of 10 mg of Morphine sulfate.

The correct angle for giving an intradermal injection is usually 10 to 15 degrees. Intradermal injections are administered just below the epidermis (the top layer of skin) into the dermal layer, which is relatively shallow. The angle is kept shallow to ensure that the medication is deposited within the dermis for absorption.