Fluid and electrolyte balance is maintained through the process of fluid and solutes moving in and out of cells. What specific process allows fluid to pass through a membrane from a dilute to a more concentrated area?
Active transport
Osmosis
Filtration
Diffusion
The Correct Answer is B
Choice A reason: Active transport is not the process that allows fluid to pass through a membrane from a dilute to a more concentrated area. Active transport is the process that moves solutes across a membrane against their concentration gradient, using energy from ATP. Active transport can create or maintain a concentration difference between two sides of a membrane.
Choice B reason: Osmosis is the process that allows fluid to pass through a membrane from a dilute to a more concentrated area. Osmosis is the movement of water across a selectively permeable membrane from an area of low solute concentration to an area of high solute concentration. Osmosis can equalize the concentration of solutes on both sides of a membrane.
Choice C reason: Filtration is not the process that allows fluid to pass through a membrane from a dilute to a more concentrated area. Filtration is the movement of fluid and solutes across a membrane due to a pressure difference between two sides of a membrane. Filtration can separate solutes from fluid based on their size and charge.
Choice D reason: Diffusion is not the process that allows fluid to pass through a membrane from a dilute to a more concentrated area. Diffusion is the movement of solutes across a membrane from an area of high solute concentration to an area of low solute concentration. Diffusion can also equalize the concentration of solutes on both sides of a membrane.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A reason: This is not a correct finding for hypervolemia. Hypotension is a low blood pressure, which can be caused by hypovolemia (low blood volume) or other factors. Hypervolemia is an excess of fluid in the body, which can increase the blood pressure.
Choice B reason: This is not a correct finding for hypervolemia. Bradycardia is a slow heart rate, which can be caused by heart block, medication, or other factors. Hypervolemia can cause tachycardia (fast heart rate) as the heart tries to pump the excess fluid.
Choice C reason: This is a correct finding for hypervolemia. Peripheral edema is a swelling of the extremities due to fluid accumulation in the tissues. Hypervolemia can cause peripheral edema as the fluid leaks from the blood vessels into the interstitial spaces.
Choice D reason: This is not a correct finding for hypervolemia. Weight loss is a decrease in body weight, which can be caused by dehydration, malnutrition, or other factors. Hypervolemia can cause weight gain as the body retains more fluid.
Correct Answer is B
Explanation
Choice A reason: Normal saline is not contraindicated for a dehydrated client with a skull fracture. Normal saline is an isotonic solution that has the same concentration of solutes as the blood plasma. It can help restore fluid balance and prevent cerebral edema.
Choice B reason: Dextrose in water 5% is contraindicated for a dehydrated client with a skull fracture. Dextrose in water 5% is a hypotonic solution that has a lower concentration of solutes than the blood plasma. It can cause fluid to shift from the blood vessels into the brain cells, increasing the intracranial pressure and worsening the skull fracture.
Choice C reason: Lactated Ringer's (LR) is not contraindicated for a dehydrated client with a skull fracture. Lactated Ringer's (LR) is an isotonic solution that has the same concentration of solutes as the blood plasma. It can also provide electrolytes such as sodium, potassium, calcium, and lactate, which can help correct acid-base imbalances.
Choice D reason: Dextrose in normal saline is not contraindicated for a dehydrated client with a skull fracture. Dextrose in normal saline is a hypertonic solution that has a higher concentration of solutes than the blood plasma. It can cause fluid to shift from the brain cells into the blood vessels, reducing the intracranial pressure and cerebral edema.
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