A nurse is teaching a class about pulmonary circulation. The nurse should include that blood flows from the heart to the lungs from the right ventricle starting from which of the following locations?

Here's how to find the volume the nurse should administer:

Medication dose to be administered: 250 mg

Available medication concentration: 1000 mg/8 mL

We need to find the volume (in mL) that contains the desired dose (250 mg) of hydrocortisone sodium succinate.

Set up a proportion:

Desired dose (mg) : Volume to administer (mL) = Concentration (mg/mL) : Available volume (mL)

In this case:

Desired dose (mg) = 250 mg

Concentration (mg/mL) = 1000 mg/8 mL (available concentration)

Volume to administer (mL) = Unknown (what we need to find)

Available volume (mL) = 8 mL (volume of solution containing the concentrated medication)

Solve for the volume to administer (mL):

Volume to administer (mL) = (Desired dose (mg) x Available volume (mL)) / Concentration (mg/mL)

Volume to administer (mL) = (250 mg x 8 mL) / 1000 mg/mL

Calculate the volume:

Volume to administer (mL) = 2000 mg / 1000 mg/mL

Volume to administer (mL) = 2 mL (round to nearest whole number as requested)

Therefore, the nurse should administer approximately 2 mL of the hydrocortisone sodium succinate solution.

A) Orthostatic hypotension is indicated by a decrease in diastolic blood pressure of 5 mm Hg:
Orthostatic hypotension is typically defined by a decrease in systolic blood pressure of 20 mm Hg or more or a decrease in diastolic blood pressure of 10 mm Hg or more within three minutes of standing up. Diastolic blood pressure alone is not the primary indicator of orthostatic hypotension.

B) Orthostatic hypotension is indicated by a decrease in systolic blood pressure of 5 mm Hg:
While a decrease in systolic blood pressure is a component of orthostatic hypotension, the criterion for diagnosing orthostatic hypotension is a decrease in systolic blood pressure of 20 mm Hg or more or a decrease in diastolic blood pressure of 10 mm Hg or more within three minutes of standing up.

C) Orthostatic hypotension increases a client's risk of a fall:
This statement is correct. Orthostatic hypotension, characterized by a sudden drop in blood pressure upon standing, can lead to dizziness and lightheadedness, increasing the risk of falls, particularly in older adults.

D) Orthostatic hypotension increases a client's risk of a pulmonary emboli:
Orthostatic hypotension is not directly associated with an increased risk of pulmonary emboli. Pulmonary embolism is a separate condition involving a blockage in the pulmonary artery or its branches, typically caused by a blood clot."