A nurse in an emergency department is assessing a client who was biten on the left leg by a poisonous snake. The client has placed elastic bandages snugly above and below the bite marks and is in no apparent distress. Which of the following actions should the nurse take?

The correct answer is: A. Elective cardioversion

Choice A reason:

Elective cardioversion is a medical procedure that is used to restore a normal heart rhythm in patients experiencing certain types of arrhythmias, including ventricular tachycardia (VT), when they are stable. It involves the delivery of a controlled electric shock to the heart, which is synchronized with the heart's electrical activity to convert the abnormal rhythm back to a normal sinus rhythm. This procedure is typically performed when VT is not causing hemodynamic instability and the patient is not in immediate danger.

Choice B reason:

Defibrillation is an emergency treatment for life-threatening cardiac arrhythmias, particularly ventricular fibrillation (VF) or pulseless ventricular tachycardia. It involves delivering a high-energy electric shock to the heart unsynchronized to the heart's electrical cycle, aiming to reset the heart's electrical state and allow it to reestablish an effective rhythm. In the scenario provided, where the patient is experiencing VT but not VF, defibrillation would not be the first line of action unless the VT deteriorates into VF or the patient becomes pulseless.

Choice C reason:

CPR, or cardiopulmonary resuscitation, is a lifesaving technique useful in many emergencies, including heart attack or near drowning, in which someone's breathing or heartbeat has stopped. In the case of VT, if the patient is conscious and has a pulse, CPR is not indicated. CPR would only be necessary if the patient's heart stops beating (cardiac arrest) as a result of the VT.

Choice D reason:

Radiofrequency catheter ablation is a procedure used to treat some types of arrhythmias, including VT, by destroying the area of heart tissue that is causing the abnormal heart rhythm. This treatment is generally considered when medication is ineffective or not tolerated, or in recurrent VT. It is not typically the first line of treatment in an acute setting where the patient is stable and experiencing VT.

Choice A: A cervical spinal cord injury can impair the function of cranial nerves, leading to a weakened gag reflex and an increased risk of aspiration.

Choice B:Patients with spinal cord injuries are more likely to experience poikilothermia (difficulty regulating body temperature), but this often results in hypothermia, not hyperthermia, due to the loss of autonomic temperature control.

Choice C:Spinal shock, which often follows a spinal cord injury, can cause decreased or absent bowel sounds due to a temporary loss of autonomic function and decreased peristalsis.

Choice D:Depending on the level and severity of the injury, paralysis can occur, affecting motor function below the injury site. A cervical spinal cord injury may lead to quadriplegia (tetraplegia).

Choice E:Clients with spinal cord injuries are more likely to experience urinary retention, rather than polyuria, due to loss of bladder control and autonomic dysfunction. A foley catheter may be needed initially, followed by intermittent catheterization.

Choice F:Neurogenic shock, a potential complication of cervical spinal cord injuries, can cause hypotension due to the loss of sympathetic nervous system control over blood vessel tone, leading to vasodilation and bradycardia.