LVN Pharmacology & Medication Administration 3

Question 1

An LVN is administering a subcutaneous injection of insulin. At what angle should the needle be inserted for a patient with average adipose tissue?

Accepted Answer

Either 45 or 90 degrees depending on tissue depth

Answer

For subcutaneous injections, a 45-degree angle is used for thin patients and 90 degrees for patients with adequate adipose tissue.

Question 2

Which adverse effect is most associated with long-term corticosteroid use?

Accepted Answer

Osteoporosis

Answer

Chronic corticosteroid therapy inhibits calcium absorption and bone formation, leading to osteoporosis over time.

Question 3

A patient is prescribed a nitroglycerin patch for angina. The LVN knows to rotate application sites to prevent:

Accepted Answer

Both A and B

Answer

Rotating nitroglycerin patch sites prevents both skin irritation from prolonged contact and development of nitrate tolerance.

Question 4

What does the abbreviation 'PRN' mean in a medication order?

Accepted Answer

As needed

Answer

PRN stands for 'pro re nata,' a Latin term meaning 'as needed,' indicating the medication is given based on patient need.

Question 5

A patient taking metformin for type 2 diabetes is scheduled for a contrast dye procedure. The LVN anticipates the metformin will be:

Accepted Answer

Held before and after the procedure

Answer

Metformin is held before iodinated contrast procedures and withheld for 48 hours after due to the risk of contrast-induced nephropathy and lactic acidosis.

(LVN) Licensed Vocational Nurses Certification Practice Test

(LVN) Licensed Vocational Nurses Certification Practice Test

LVN Pharmacology & Medication Administration 3