The nurse is reviewing the informed consent form with a client who is scheduled for surgery with regional anesthesia. Which of the following statements by the client indicates a need for further teaching? (Select all that apply.)

Choice A reason:

Shivering is a sign of hypothermia because it is the body's way of generating heat when the core temperature drops below normal. Shivering can be uncontrollable in mild hypothermia and may stop in moderate to severe hypothermia as the body conserves energy.

Choice B reason:

Tachycardia is not a sign of hypothermia. In fact, hypothermia can cause bradycardia, which is a slow heart rate, as the body tries to reduce heat loss through the blood vessels.

Choice C reason:

Pallor is a sign of hypothermia because it indicates reduced blood flow to the skin as the blood vessels constrict to preserve core temperature. Pallor can also be accompanied by cyanosis, which is a bluish discoloration of the skin and mucous membranes due to low oxygen levels in the blood.

Choice D reason:

Diaphoresis is a sign of hypothermia because it is the result of excessive sweating that can occur after exposure to cold or wet environments. Sweating can increase heat loss through evaporation and lower the body temperature further.

Choice E reason:

Hypotension is a sign of hypothermia because it reflects decreased cardiac output and blood pressure as the heart muscle becomes less efficient and responsive to stimuli. Hypotension can also lead to shock, organ failure, and death if not treated promptly.

Choice A reason:

The client reports numbness in his right leg. This is not a cause for immediate intervention by the nurse, because numbness is an expected effect of spinal anesthesia. Spinal anesthesia blocks the nerve impulses from the lower extremities, lower abdomen, pelvic, and perineal regions, resulting in loss of sensation and movement.

Choice B reason:

The client has a blood pressure of 90/60 mm Hg. This is not a cause for immediate intervention by the nurse, because mild hypotension is a common side effect of spinal anesthesia. Spinal anesthesia causes vasodilation and decreases the sympathetic tone, leading to reduced blood pressure. The nurse should monitor the client's vital signs and fluid status, and administer vasopressors if needed.

Choice C reason:

The client complains of a headache when sitting up. This is a cause for immediate intervention by the nurse, because it may indicate a post-dural puncture headache (PDPH) PDPH is a complication of spinal anesthesia that occurs when the dura mater is punctured by the needle, causing cerebrospinal fluid (CSF) to leak and create a pressure gradient between the intracranial and spinal compartments. The nurse should assess the client's pain level, position the client flat or with a slight head elevation, administer analgesics and fluids, and notify the anesthesiologist.

Choice D reason:

The client has difficulty voiding after surgery. This is not a cause for immediate intervention by the nurse, because urinary retention is a common problem after spinal anesthesia. Spinal anesthesia affects the bladder function by inhibiting the micturition reflex and impairing the sensation of bladder fullness. The nurse should monitor the client's urine output, bladder distension, and fluid intake, and assist with catheterization if needed.