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A client is ordered ampicillin 0.5 g po every 6 hours. On hand are ampicillin capsules labeled 250mg. How many capsules will the nurse administer for single dose?
Answer and Explanation

The Correct Answer is ["2"]

Given:

Desired dose: Ampicillin 0.5 g PO

Available concentration: Ampicillin capsules 250 mg each

 

To find:

Number of capsules to administer for a single dose

 

Step 1: Convert desired dose to milligrams

We know that 1 gram (g) is equal to 1000 milligrams (mg). Therefore, to convert the desired dose from grams to milligrams, we multiply by 1000:

Desired dose (mg) = Desired dose (g) x 1000

Desired dose (mg) = 0.5 g x 1000 = 500 mg

 

Step 2: Calculate the number of capsules

To find the number of capsules, we divide the desired dose by the strength of each capsule:

Number of capsules = Desired dose / Capsule strength

Number of capsules = 500 mg / 250 mg/capsule = 2 capsules


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Related Questions

Correct Answer is B

Explanation

A) Milia:
Milia are tiny white or yellowish cysts that appear on a newborn's face, particularly on the nose, chin, or forehead. They are caused by the accumulation of keratin under the skin. Milia usually disappear within a few weeks of life and are not related to the pinkish marks described in the question.

B) Telangiectatic nevi (stork bites):
This finding is consistent with telangiectatic nevi, also known as stork bites. These are flat, irregular, pinkish-red marks often found on the forehead, eyelids, and nape of the neck. They are caused by dilated capillaries in the skin and are common in newborns. The marks blanch when pressed and are usually harmless, disappearing within the first 1-2 years of life. This is the correct answer based on the description provided in the question.

C) Nevus flammeus (port wine stain):
A port wine stain is a dark red to purple, flat birthmark caused by capillary malformations. Unlike stork bites, a port wine stain does not blanch when pressed and is typically present for life. It usually appears on the face, neck, or arms, and the coloration remains the same over time.

D) Nevus vasculosus (strawberry mark):
A strawberry mark is a raised, red, and bumpy birthmark that results from proliferation of capillaries. These marks typically appear in the first few weeks of life and grow in size before eventually shrinking and disappearing by the age of 5-10 years. Strawberry marks are not flat, pinkish, or blanchable, making this option unlikely in the scenario described.

Correct Answer is B

Explanation

Naegele's Rule is a method used to estimate the due date of a pregnancy. It involves the following steps:

  1. Start with the first day of the client's last menstrual period (LMP).
  2. Add one year.
  3. Subtract three months.
  4. Add seven days.

Using the client's LMP of September 17:

  1. Start with September 17.
  2. Add one year: September 17, the following year.
  3. Subtract three months: June 17 of the following year.
  4. Add seven days: June 24.

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