Order: Diphenhydramine 25mg Q4H
Available: Diphenhydramine 12.5mg/5mL
How much will you administer?
2 mL
10 mL
25mL
12.5 mL
The Correct Answer is B
First, we need to find out how many milligrams (mg) are in 1 milliliter (mL) of the available diphenhydramine solution:
12.5 mg/5 mL
To find out how many milligrams are in 1 mL, we divide the total milligrams by the total milliliters:
12.5 mg ÷ 5 mL = 2.5 mg/mL
Now that we know the concentration of diphenhydramine is 2.5 mg/mL, we can calculate the dose needed for the order of 25 mg:
25 mg ÷ 2.5 mg/mL = 10 mL
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. Place tissue soiled with respiratory secretions in a paper bag for later disposal:
This instruction is not accurate or recommended for managing tissue soiled with respiratory secretions, particularly in the context of tuberculosis (TB) infection. TB is transmitted through the air via respiratory droplets, so proper disposal of contaminated materials is crucial to prevent the spread of the infection. Instead of placing tissue in a paper bag, it should be disposed of in a sealed plastic bag to minimize the risk of transmission. Additionally, individuals with TB should be instructed on proper respiratory hygiene practices, such as covering their mouth and nose with a tissue or their elbow when coughing or sneezing, to prevent the spread of infectious droplets.
B. Provide samples for sputum cultures every 6 weeks:
Sputum cultures are an essential component of monitoring and managing tuberculosis (TB) treatment. However, obtaining samples every 6 weeks is not frequent enough, especially during the initial phase of treatment. In the early stages of TB treatment, sputum cultures are typically obtained more frequently, often weekly or biweekly, to monitor the response to treatment, assess for drug resistance, and ensure treatment effectiveness. As treatment progresses and the patient's condition stabilizes, the frequency of sputum cultures may be adjusted based on clinical judgment and guidelines.
C. Consume alcohol in moderation while taking antituberculosis medications:
Alcohol consumption is generally discouraged while taking antituberculosis medications. Some antituberculosis drugs, such as isoniazid and rifampin, can interact with alcohol and cause adverse effects, such as liver toxicity or drug metabolism issues. Therefore, individuals undergoing treatment for tuberculosis should be advised to abstain from alcohol consumption or limit it to a minimum to avoid potential complications. Providing instructions on alcohol consumption is an important aspect of tuberculosis management and medication adherence.
D. Wear a mask while out or around crowds of people:
This instruction is crucial for individuals with pulmonary tuberculosis to prevent the spread of the infection to others. Tuberculosis is transmitted through the air via respiratory droplets, particularly when an infected person coughs, sneezes, or talks. Wearing a mask while out or in crowded settings helps reduce the risk of transmitting infectious droplets to others and is an important infection control measure. It is especially important during the early stages of treatment when the individual is still infectious and shedding bacteria. Proper mask use, along with other respiratory hygiene practices, can help protect both the individual with tuberculosis and those around them from the spread of infection.
Correct Answer is D
Explanation
A. Pigeon
A pigeon chest, also known as pectus carinatum, is a deformity of the chest characterized by a protrusion of the sternum and ribs, resulting in a pigeon-like appearance of the chest. This deformity is not typically associated with COPD.
B. Funnel
A funnel chest, also known as pectus excavatum, is a deformity of the chest characterized by a depression or concavity in the sternum, resulting in a funnel-like appearance of the chest. This deformity is not typically associated with COPD.
C. Kyphotic
Kyphosis refers to an exaggerated forward curvature of the thoracic spine, leading to a hunched or rounded upper back. While individuals with severe COPD may develop kyphosis due to chronic respiratory muscle fatigue and increased work of breathing, kyphotic curvature is not specific to COPD and can occur in other conditions as well.
D. Barrel
In COPD (Chronic Obstructive Pulmonary Disease), the client's chest may take on a barrel shape. This is characterized by an increase in the anterior-posterior diameter of the chest, resulting in a more rounded appearance similar to that of a barrel. This change in chest shape is due to hyperinflation of the lungs, which occurs as a result of air trapping and increased residual volume in the lungs, common in COPD.
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