The healthcare provider prescribes penicillin 200, 000 units intramuscularly for a client with pneumonia. The available vial is labeled, "Penicillin 500,000 units/mL". How many mL should the nurse administer to this client?
(Enter numerical value only. If rounding is required, round to the nearest tenth.)
The Correct Answer is ["0.4"]
Step 1: Use the Formula
mL = units prescribed ÷ units per mL
Step 2: Plug in the Given Values
mL = 200,000 ÷ 500,000
Step 3: Simplify the Fraction
mL = 2 ÷ 5
Step 4: Convert the Fraction to a Decimal
mL = 0.4 mL
The nurse should administer 0.4 mL of penicillin to this client.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. Carcinogens are substances that contain cancerous cells:
This statement is incorrect. Carcinogens are substances that have the potential to cause cancer, but they do not necessarily contain cancerous cells themselves.
B. Substances that change a cell so that it becomes cancerous are potential sources of cancer:
This is the correct answer. Carcinogens are agents that can induce changes in the genetic material of cells, leading to the development of cancer. They can initiate or promote the process of carcinogenesis.
C. Environmental factors such as sunlight and chemicals can cause cancer to spread:
This statement is not accurate. Carcinogens can contribute to the initiation or promotion of cancer, but the spread of cancer (metastasis) involves complex biological processes and is not directly caused by environmental factors.
D. Carcinogens are in the environment and cannot be avoided:
This statement is not accurate. While carcinogens may be present in the environment, efforts can be made to minimize exposure and adopt preventive measures. Avoidance of known carcinogens and the promotion of a healthy lifestyle can contribute to cancer prevention.
Correct Answer is ["0.4"]
Explanation
Step 1: Use the Formula
mL = units prescribed ÷ units per mL
Step 2: Plug in the Given Values
mL = 200,000 ÷ 500,000
Step 3: Simplify the Fraction
mL = 2 ÷ 5
Step 4: Convert the Fraction to a Decimal
mL = 0.4 mL
The nurse should administer 0.4 mL of penicillin to this client.
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