Exhibits
The practical nurse (PN) notifies the healthcare provider that the client continues to have signs of fluid volume deficit. The health care provider prescribes a continuous infusion of isotonic fluids.
Which fluid(s) is/are classified as isotonic? Select all that apply.
50% dextrose
0.45% sodium chloride
20% dextrose
5% dextrose
5% dextrose with 0.45% sodium chloride
5% dextrose with lactated Ringer's
lactated Ringer's
0.9% sodium chloride
Correct Answer : G,H
A. 50% dextrose
50% dextrose is not isotonic; it is a hypertonic solution. Hypertonic solutions have a higher concentration of solutes compared to the cells, causing water to move out of the cells and into the extracellular space, which does not treat fluid volume deficit effectively.
B. 0.45% sodium chloride
0.45% sodium chloride, also known as half-normal saline, is a hypotonic solution. Hypotonic solutions have a lower concentration of solutes compared to the cells, which would cause water to move into the cells rather than stay in the extracellular space to address fluid volume deficit.
C. 20% dextrose
20% dextrose is a hypertonic solution. It contains a higher concentration of dextrose compared to the extracellular fluid, which draws water into the extracellular space but is not used for treating fluid volume deficits.
D. 5% dextrose
5% dextrose (D5W) is initially isotonic but becomes hypotonic once metabolized, as the dextrose is used up and only water remains. It is not suitable for continuous isotonic fluid therapy for fluid volume deficit.
E. 5% dextrose with 0.45% sodium chloride
5% dextrose with 0.45% sodium chloride is a hypertonic solution. While it starts isotonic, it becomes hypotonic once the dextrose is metabolized, making it unsuitable for long-term isotonic fluid replacement.
F. 5% dextrose with lactated Ringer's
5% dextrose with lactated Ringer's is a hypertonic solution. It contains both dextrose and electrolytes, which are not purely isotonic and may not be ideal for addressing fluid volume deficits on their own.
G. Lactated Ringer's
Lactated Ringer's is an isotonic solution. It has a similar osmolarity to plasma and is used for fluid volume replacement, helping to restore blood volume and maintain electrolyte balance.
H. 0.9% sodium chloride
0.9% sodium chloride, or normal saline, is an isotonic solution. It has the same osmolarity as plasma and is commonly used for fluid volume replacement and maintaining hydration
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["B","D","E"]
Explanation
A. Bacterial conjunctivitis is not a reportable infectious disease according to the CDC. While it is a common condition, it does not fall under the mandatory reporting requirements for public health.
B. Diphtheria is a reportable disease because it is a severe bacterial infection that can lead to outbreaks and severe health consequences. Reporting helps track and control the spread of this potentially life-threatening disease.
C. Pediculosis (head lice) is not a reportable disease by the CDC. It is a common parasitic infestation but does not require mandatory reporting for public health surveillance.
D. Anthrax is a reportable disease due to its potential for severe illness and its use as a bioterrorism agent. Reporting anthrax is crucial for monitoring and managing outbreaks and potential public health threats.
E. Tuberculosis is a reportable disease because it is a serious infectious disease that can spread in communities and requires public health measures to manage and prevent outbreaks.
Correct Answer is B
Explanation
A. Placing a biohazard bag over the basin and sealing it is not appropriate because the specimen should have been collected directly into a sterile container, and the specimen's current state in a non-sterile basin is not acceptable for lab analysis.
B. Assisting the client in obtaining another specimen is necessary to avoid cross contamination.
C. Using a wooden applicator to place the sputum specimen in a sterile container is the incorrect as it breaches sterility.
D. Applying gloves and placing the tissue and specimen in a container is incorrect as the specimen must be in a sterile container from the start. Using a non-sterile basin means the specimen might be contaminated.
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