Related Questions
Correct Answer is A
Explanation
Choice A Reason: Continuous bubbling in the water-seal chamber indicates an air leak in the chest tube system, which can compromise the drainage of air and fluid from the pleural space and impair lung expansion.
Choice B Reason: Occasional bubbling in the water-seal chamber is normal and expected, as it indicates that air is being removed from the pleural space.
Choice C Reason: Fluctuations in the fluid level in the water-seal chamber are normal and expected, as they reflect changes in intrathoracic pressure during inspiration and expiration.
Choice D Reason: Constant bubbling in the suction-control chamber is normal and expected, as it indicates that suction is being applied to the chest tube system.

Correct Answer is C
Explanation
Choice A Reason: Albumin 25% is not a medication that the nurse should plan to administer for a client who is experiencing Cushing's triad following a subdural hematoma. Albumin 25% is a colloid solution that increases the oncotic pressure and draws fluid from the interstitial space into the intravascular space, which can worsen the intracranial pressure by increasing the cerebral blood flow and edema.
Choice B Reason: Dextran 70 is not a medication that the nurse should plan to administer for a client who is experiencing Cushing's triad following a subdural hematoma. Dextran 70 is a plasma expander that increases the blood volume and viscosity, which can also worsen the intracranial pressure by increasing the cerebral blood flow and edema.
Choice C Reason: Mannitol 25% is a medication that the nurse should plan to administer for a client who is experiencing Cushing's triad following a subdural hematoma. Mannitol 25% is an osmotic diuretic that reduces the intracranial pressure by creating an osmotic gradient and drawing fluid from the brain tissue into the blood vessels, which can then be excreted by the kidneys. The nurse should monitor the urine output, serum osmolality, and electrolytes when administering mannitol 25%.
Choice D Reason: Hydroxyethyl starch is not a medication that the nurse should plan to administer for a client who is experiencing Cushing's triad following a subdural hematoma. Hydroxyethyl starch is another plasma expander that has similar effects as dextran 70, and can also increase the risk of coagulopathy and renal failure.
