The physician prescribes ticarcillin 35 mg IV every 4 hours for a client post kidney transplant.

The client weighs 14 lbs.

The nursing drug reference recommends a maximum of 20-30 mg/kg/day.

Is the ordered dose for this client safe? Yes or No.

Managing an open pneumothorax requires immediate stabilization of the chest wall to restore pleural pressure dynamics. Knowledge of respiratory mechanics and the prevention of tension pneumothorax is essential to prioritize the correct occlusive dressing technique before proceeding with secondary medical interventions.

Choice A rationale: While a chest tube is the definitive treatment to re-expand the lung and drain the pleural space, it is not the first action. The immediate life-threatening air leak through the wound must be addressed first to stabilize the patient.

Choice B rationale: Administering high-flow oxygen is supportive and necessary, but it will not resolve the primary issue of an open sucking chest wound. Without sealing the atmospheric air entry point, the patient's respiratory effort will remain severely compromised by the pneumothorax.

Choice C rationale: Applying a sterile occlusive dressing taped on three sides creates a one-way valve. This allows trapped air to escape the pleural space during expiration while preventing atmospheric air from entering during inspiration, effectively preventing the development of a tension pneumothorax.

Choice D rationale: Initiating large-bore IV access is a critical part of trauma resuscitation to manage potential shock and administer fluids. However, in the hierarchy of trauma care, the "Breathing" intervention of sealing a sucking chest wound takes precedence over "Circulation" access.

Hemodynamic monitoring requires knowledge of pressure dynamics within the right atrium and vena cava. Central venous pressure reflects right heart preload and fluid volume status. Increased readings indicate either fluid volume excess or impaired pumping ability of the right ventricle.

Choice A rationale

. Increased cardiac output typically relates to efficient ventricular contraction and does not directly cause an elevated central venous pressure. High output states might actually reflect lower pressures if the volume is moving effectively. It is not the primary cause of pressure backup.

Choice B rationale

. Dehydration leads to a decrease in circulating blood volume, which results in a low central venous pressure reading. Normal CVP ranges from 2 to 8 mmHg. A reading below this range typically indicates a need for intravenous fluid resuscitation.

Choice C rationale

. When the right ventricle fails, it cannot effectively pump blood into the pulmonary circulation. This causes blood to back up into the right atrium and vena cava. This congestion results in a measurable rise in the central venous pressure reading.

Choice D rationale

. Hypovolemia represents a state of low intravascular volume, which reduces the pressure exerted on the walls of the great veins. This leads to a decreased CVP reading. It is the physiological opposite of the volume overload seen in heart failure.