A nurse is teaching an ACLS class and is discussing heart rhythms and treatment. Which of the following rhythms would indicate the need for defibrillation?

Choice A: Instruct the client to lean forward This action is not related to the assessment of asterixis. Leaning forward can be part of the physical examination for other conditions, such as assessing for spinal issues or abdominal pain, but it does not provoke the characteristic flapping motion of the hands seen in asterixis.

Choice B: Ask the client to extend the arms This is the correct method to assess for asterixis. The patient is asked to extend their arms and dorsiflex their wrists. The nurse then observes for any involuntary flapping movements of the hands, which would indicate the presence of asterixis. This sign is indicative of a disturbance in the central nervous system’s regulation of muscle tone, often due to metabolic liver dysfunction. To assess for asterixis, the nurse should ask the client to extend their arms, which is the standard method for eliciting this sign. The presence of asterixis can help in the diagnosis of hepatic encephalopathy and other metabolic conditions affecting the brain’s control of muscle tone.

Choice C: Dorsiflex the client’s foot Dorsiflexion of the foot is not a method used to assess for asterixis. While changes in muscle tone can be assessed in the lower limbs, asterixis is specifically a hand tremor and is best observed in the upper extremities.

Choice D: Measure the abdominal girth Measuring abdominal girth is relevant in the assessment of ascites, which can occur in cirrhosis, but it is not a method for assessing asterixis. Ascites refers to the accumulation of fluid in the peritoneal cavity, leading to increased abdominal size, which is a common complication of cirrhosis.

Choice A: Bradycardia Bradycardia, or a slower than normal heart rate, is not typically a direct symptom of flail chest. While traumatic injuries can lead to various cardiac responses, bradycardia is not commonly associated with the respiratory distress seen in flail chest. Flail chest is a serious condition that occurs when a segment of the rib cage breaks due to trauma and becomes detached from the rest of the chest wall. This can severely affect breathing and lead to other complications.

Choice B: Anxiety Anxiety is a common response in patients with flail chest due to the pain and difficulty in breathing associated with the condition. The stress of the injury and the body’s response to the trauma can lead to feelings of anxiety and panic.

Choice C: Dyspnea Dyspnea, or difficulty breathing, is one of the primary symptoms of flail chest. The instability of the chest wall and the paradoxical movement of the flail segment impair the normal mechanics of breathing, leading to shortness of breath.

Choice D: Unequal chest expansion Unequal chest expansion is a hallmark sign of flail chest. The affected area of the chest wall moves in the opposite direction to the rest of the chest during the respiratory cycle, which can be observed as an abnormal movement during inhalation and exhalation.

Choice E: Hypotension Hypotension, or low blood pressure, can occur in flail chest cases, especially if there is associated trauma such as bleeding or if the patient is in shock. The body’s response to the injury and the potential for compromised venous return due to the chest wall’s dysfunction can lead to hypotension.

Choice F: Paradoxical chest movement Paradoxical chest movement is a definitive sign of flail chest. It occurs when the broken section of the rib cage moves inward during inhalation and outward during exhalation, opposite to the normal chest movement. This is due to the loss of stability in the chest wall and is easily observable during a physical examination. Flail chest is a critical condition that requires immediate medical attention. The signs and symptoms associated with this condition include anxiety, dyspnea, unequal chest expansion, hypotension, and paradoxical chest movement. These symptoms reflect the underlying pathophysiology of the condition, which is the instability of the chest wall and the resulting impairment of normal respiratory function.