Which term would the nurse use when extracellular fluid and intracellular fluid have the same osmolality?
Hypotonic
Oncotic pressure
Isotonic
Hypertonic
The Correct Answer is C
Choice A: Hypotonic
A hypotonic solution has a lower concentration of solutes compared to the fluid inside the cells. When cells are placed in a hypotonic solution, water enters the cells, causing them to swell and potentially burst. This is because the osmotic pressure drives water into the cells to balance the solute concentration. Hypotonic solutions are not used to describe a state where extracellular and intracellular fluids have the same osmolality.
Choice B: Oncotic Pressure
Oncotic pressure, also known as colloid osmotic pressure, is the form of osmotic pressure exerted by proteins, primarily albumin, in the blood plasma. It plays a crucial role in maintaining fluid balance between the blood vessels and the surrounding tissues by pulling water into the circulatory system. Oncotic pressure is not related to the concept of equal osmolality between extracellular and intracellular fluids.
Choice C: Isotonic
An isotonic solution has the same concentration of solutes as the fluid inside the cells. When extracellular fluid is isotonic to intracellular fluid, there is no net movement of water into or out of the cells, maintaining cell stability. This balance is crucial for normal cellular function and is the term used to describe equal osmolality between extracellular and intracellular fluids.
Choice D: Hypertonic
A hypertonic solution has a higher concentration of solutes compared to the fluid inside the cells. When cells are placed in a hypertonic solution, water leaves the cells, causing them to shrink or crenate. This occurs because the osmotic pressure drives water out of the cells to balance the solute concentration. Hypertonic solutions are not used to describe a state where extracellular and intracellular fluids have the same osmolality.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["A","B","C","D","E"]
Explanation
Choice A: Collect patient information
The first step in the nursing process is to collect patient information, also known as the assessment phase. During this phase, the nurse gathers comprehensive data about the patient’s health status, including medical history, physical examination findings, and any relevant diagnostic test results. This information forms the foundation for identifying the patient’s needs and planning appropriate care.
Choice B: Identify any clinical problems
After collecting patient information, the next step is to identify any clinical problems, also known as the diagnosis phase. In this phase, the nurse analyzes the assessment data to determine the patient’s health issues or potential risks. This step involves critical thinking and clinical judgment to prioritize the patient’s problems and develop a nursing diagnosis.
Choice C: Decide a plan of action
The third step is to decide a plan of action, also known as the planning phase. During this phase, the nurse sets measurable and achievable goals for the patient’s care based on the identified clinical problems. The nurse also develops specific interventions to address these problems and achieve the desired outcomes. This plan serves as a guide for the subsequent implementation phase.
Choice D: Carry out the plan
The fourth step is to carry out the plan, also known as the implementation phase. In this phase, the nurse executes the planned interventions to address the patient’s clinical problems. This may involve administering medications, providing treatments, educating the patient and family, and coordinating care with other healthcare professionals. The nurse continuously monitors the patient’s response to the interventions and makes adjustments as needed.
Choice E: Determine whether the plan was effective
The final step is to determine whether the plan was effective, also known as the evaluation phase. During this phase, the nurse assesses the patient’s progress toward the established goals and evaluates the effectiveness of the interventions. If the desired outcomes are not achieved, the nurse may need to revise the plan and implement new strategies. This ongoing evaluation ensures that the patient’s care is continuously improved and optimized.
Correct Answer is C
Explanation
Choice A reason:
Monitoring for shortness of breath or fatigue after ambulation is a critical task that requires clinical judgment and assessment skills. Certified Nurse Assistants (CNAs) are trained to assist with basic patient care activities but are not typically trained to assess and interpret clinical symptoms such as shortness of breath or fatigue. These symptoms could indicate serious complications such as pulmonary embolism or cardiac issues, which require immediate attention from a licensed nurse or physician. Therefore, this task is not appropriate for delegation to a CNA.
Choice B reason:
Determining whether the patient is ready to increase activity involves assessing the patient’s overall condition, including their vital signs, pain levels, and physical capabilities. This requires a comprehensive understanding of the patient’s medical history and current status, which falls within the scope of practice of a registered nurse (RN) or licensed practical nurse (LPN). CNAs do not have the training to make such determinations, as it involves critical thinking and clinical decision-making skills. Therefore, this task should not be delegated to a CNA.
Choice C reason:
Obtaining the patient’s blood pressure and pulse rate after ambulation is a task that is appropriate for delegation to a CNA. CNAs are trained to measure and record vital signs, including blood pressure and pulse rate. This task does not require clinical judgment or decision-making, making it suitable for delegation. The CNA can report the findings to the nurse, who can then interpret the results and make any necessary clinical decisions. This delegation allows the nurse to focus on more complex tasks that require their advanced training and expertise.
Choice D reason:
Instructing the patient on how to use an incentive spirometer involves patient education, which is a responsibility that typically falls to licensed nurses. Proper use of an incentive spirometer is crucial for preventing postoperative complications such as atelectasis and pneumonia. Ensuring that the patient understands how to use the device correctly requires not only demonstrating its use but also assessing the patient’s comprehension and ability to perform the task. This level of patient education and assessment is beyond the scope of practice for a CNA.
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