The new graduate nurse asks the experienced nurse, Why does a client receive vasopressin after undergoing a hypophysectomy? How should the nurse respond?

Circumferential full-thickness burns to the chest create an inelastic eschar that restricts thoracic excursion. Knowledge of burn pathophysiology and respiratory mechanics is needed to identify life-threatening restrictive lung disease and the urgent need for a surgical escharotomy.

Choice A rationale

High pressure ventilator alarms occur when the ventilator meets resistance while delivering a breath. While this indicates a problem, it is a machine notification of the physiological restriction caused by the chest eschar and not the root observation.

Choice B rationale

Increasing peak pressures reflect decreased lung compliance or increased airway resistance. In this scenario, the pressures rise because the chest wall cannot expand, but the mechanical measurement is secondary to the physical assessment of chest movement.

Choice C rationale

Decreased thoracic expansion in a circumferential burn patient indicates the eschar is acting as a tourniquet. This prevents lung inflation, leading to rapid respiratory failure. This physical finding confirms the immediate need for an emergency escharotomy.

Choice D rationale

A SpO2 of 90 percent indicates hypoxemia, which is a significant clinical sign. However, it is a late manifestation of the underlying mechanical restriction. The priority is identifying the physical cause, which is the lack of expansion.

Acute pancreatitis involves the autodigestion of the pancreas by activated enzymes. Knowledge of systemic inflammatory response and gastric acid management is necessary to understand the rationale for bowel rest and the prevention of secondary complications like stress ulcers.

Choice A rationale

Early ambulation is generally encouraged but not a priority during the acute, painful phase of pancreatitis. The client often requires bed rest to decrease metabolic demands and minimize the stimulation of pancreatic enzyme secretion and activity.

Choice B rationale

Pantoprazole is a proton pump inhibitor used to decrease gastric acid secretion. In pancreatitis, reducing acid prevents it from entering the duodenum and stimulating the release of secretin, which would otherwise trigger further pancreatic enzyme production.

Choice C rationale

Pancrelipase consists of digestive enzymes meant for chronic pancreatitis or pancreatic insufficiency. In acute pancreatitis, giving enzymes orally would further stimulate the inflamed organ and worsen the condition; the client must remain nothing by mouth.

Choice D rationale

A low-residue diet is inappropriate for acute pancreatitis. The initial treatment must be strict bowel rest (NPO) to stop all stimulus to the pancreas, allowing the inflammation to subside before reintroducing any oral intake or nutrients..