A patient with alkalosis can develop hyperkalemia.
True
False
The Correct Answer is A
Choice A: True
The statement that a patient with alkalosis can develop hyperkalemia is generally incorrect. Alkalosis, which is a condition characterized by a higher-than-normal pH in the blood, typically leads to hypokalemia rather than hyperkalemia. This occurs because alkalosis causes potassium to shift from the extracellular fluid into the cells, reducing the plasma potassium concentration. Therefore, it is uncommon for alkalosis to result in hyperkalemia.
Choice B: False
The correct answer is that a patient with alkalosis is unlikely to develop hyperkalemia. Alkalosis usually causes a decrease in plasma potassium levels, leading to hypokalemia. This is due to the movement of potassium ions into the cells in exchange for hydrogen ions, which are moved out of the cells to help buffer the increased pH. Consequently, the plasma potassium concentration drops, making hyperkalemia an unlikely outcome in the presence of alkalosis.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A: 3% Saline
3% Saline is a hypertonic solution, meaning it has a higher concentration of solutes compared to the blood plasma. It is typically used in critical care settings for specific conditions such as severe hyponatremia or cerebral edema. Administering 3% Saline to a patient with a fluid deficit who requires isotonic fluid replacement would not be appropriate because it could lead to cellular dehydration and other complications due to its high osmolarity.
Choice B: Saline 0.45%
Saline 0.45%, also known as half-normal saline, is a hypotonic solution. It has a lower concentration of solutes compared to blood plasma and is used to treat patients with hypernatremia or those who need to be rehydrated without adding too much sodium. However, it is not suitable for isotonic fluid replacement because it can cause cells to swell and potentially burst due to the influx of water into the cells.
Choice C: Saline 0.9%
Saline 0.9%, also known as normal saline, is an isotonic solution. It has the same concentration of solutes as blood plasma, making it ideal for fluid replacement in patients with a fluid deficit. Normal saline is commonly used to expand the extracellular fluid volume without causing significant shifts in fluid between compartments. This makes it the appropriate choice for isotonic fluid replacement.
Choice D: Dextrose 10%
Dextrose 10% is a hypertonic solution used primarily for providing calories in patients who need parenteral nutrition or for treating severe hypoglycemia. It is not suitable for isotonic fluid replacement because its high glucose content can lead to osmotic diuresis and fluid shifts that are not desirable in patients needing isotonic fluids.
Correct Answer is C
Explanation
Choice A Reason:
Monitoring the CXR (chest X-ray) results is not directly related to assessing myelosuppression. A chest X-ray is typically used to evaluate the lungs and heart, and while it can help identify infections or other complications, it does not provide information about bone marrow activity or blood cell counts. Myelosuppression specifically affects the production of blood cells in the bone marrow, which is best assessed through blood tests like the CBC (Complete Blood Count).
Choice B Reason:
Monitoring the BMP (Basic Metabolic Panel), especially the sodium, potassium, and magnesium counts, is important for evaluating electrolyte balance and kidney function. However, it does not directly assess myelosuppression. Myelosuppression involves the suppression of bone marrow activity, leading to decreased production of blood cells, which is not reflected in electrolyte levels.
Choice C Reason:
Monitoring the CBC (Complete Blood Count), especially the neutrophil, platelet, and RBC (red blood cell) counts, is the most appropriate method for assessing myelosuppression. Myelosuppression results in decreased production of blood cells, including neutrophils (a type of white blood cell), platelets, and red blood cells. A CBC provides detailed information about these cell counts and helps identify conditions like neutropenia (low neutrophil count), thrombocytopenia (low platelet count), and anemia (low red blood cell count), which are common consequences of myelosuppression.
Choice D Reason:
Monitoring the spinal fluid analysis is not relevant for assessing myelosuppression. Spinal fluid analysis is typically used to diagnose conditions affecting the central nervous system, such as infections, bleeding, or multiple sclerosis. It does not provide information about bone marrow activity or blood cell counts, which are the primary concerns in myelosuppression.