A nurse is providing teaching about potential complications to a client who has a spinal cord injury. Which of the following should the nurse include in the teaching as a common complication of spinal cord injuries?
(Select All that Apply.)

Choice A Reason:

Primary progressive multiple sclerosis (PPMS) is false. This subtype of MS is characterized by a gradual worsening of symptoms from the onset of the disease, without distinct relapses or remissions. It typically leads to a progressive accumulation of disability over time, without periods of remission. The pattern described by the client, with alternating periods of active symptoms and symptom-free periods, does not align with the continuous progression seen in PPMS.

Choice B Reason:

Relapsing-remitting multiple sclerosis (RRMS) is true. RRMS is characterized by distinct relapses, during which new symptoms may appear or existing symptoms may worsen, followed by periods of partial or complete recovery (remissions), during which the symptoms improve or may even disappear entirely. This pattern matches the description provided by the client, indicating RRMS as the likely subtype.

Choice C Reason:

Clinically isolating syndrome (CIS) is false. CIS refers to a single episode of neurological symptoms caused by inflammation or demyelination in the central nervous system, which may or may not progress to MS. However, CIS does not involve the characteristic pattern of relapses and remissions seen in RRMS.

Choice D Reason:

Secondary progressive multiple sclerosis (SPMS) is false. SPMS is characterized by a gradual worsening of symptoms and disability over time, following an initial period of relapsing-remitting disease. It may or may not involve distinct relapses and remissions, depending on the individual's disease course. While SPMS can involve periods of symptom exacerbation, it typically lacks the clear pattern of relapses followed by remissions seen in RRMS.

Choice A Reason:

Hypoxemia due to dead space is not appropriate. Dead space refers to areas of the lung where ventilation occurs but no perfusion takes place. In ARDS, hypoxemia typically occurs due to ventilation-perfusion (V/Q) mismatch and shunting rather than dead space.

Choice B Reason:

Impaired carbon dioxide elimination due to shunting is not appropriate. Shunting occurs when blood bypasses ventilated alveoli, leading to inadequate gas exchange. In ARDS, shunting contributes to hypoxemia, but it doesn't directly impair carbon dioxide elimination.

Choice C Reason:

Decreased pulmonary arterial pressure due to ventilation-perfusion (V/Q) mismatch is incorrect. V/Q mismatch occurs when ventilation and perfusion are mismatched in different areas of the lung. This leads to areas of low ventilation (dead space) and areas of low perfusion (shunting). V/Q mismatch contributes to hypoxemia in ARDS but does not typically lead to decreased pulmonary arterial pressure.

Choice D Reason:

Decreased pulmonary compliance due to stiffness is correct. This is a characteristic feature of ARDS. The inflammation and damage to the alveoli cause them to become stiff, reducing pulmonary compliance and impairing lung expansion during ventilation.