A nurse is caring for a patient who has acute kidney injury.
The patient’s ABGs are: pH: 7.26, PaCO2: 30 mm Hg, HCO3: 14 mEq/L. Which of the following acid-base imbalances should the nurse identify the patient is experiencing?

Choice A rationale:

Temperature control for either hypothermia or hyperthermia is crucial in septic shock management. Here's a detailed explanation:

Hypothermia:

Mechanism: Septic shock often causes impaired thermoregulation, leading to hypothermia. It can worsen shock by decreasing cardiac output, impairing coagulation, and promoting vasoconstriction.

Intervention: Active warming measures are essential, including: External warming devices (e.g., blankets, forced air warmers) Intravenous fluids warmed to 39-42°C

Warmed humidified oxygen

Minimizing exposure and covering the patient Hyperthermia:

Mechanism: Sepsis can trigger an excessive inflammatory response, leading to hyperthermia. It can exacerbate tissue injury, increase metabolic demands, and worsen organ dysfunction.

Intervention: Aggressive measures to lower temperature are necessary, including:

Antipyretic medications (e.g., acetaminophen, ibuprofen) External cooling methods (e.g., cooling blankets, ice packs) Sedation if shivering occurs

Choice B rationale:

Administration of cardiotonic agents such as dopamine, dobutamine, or norepinephrine is often required in septic shock to: Improve cardiac output: These agents increase myocardial contractility and heart rate, enhancing blood flow to vital organs.

Maintain blood pressure: They support vasoconstriction, counteracting the widespread vasodilation characteristic of septic shock.

Improve tissue perfusion: By optimizing cardiac output and blood pressure, they help ensure adequate oxygen and nutrient delivery to tissues.

Choice E rationale:

Blood cultures from all suspected sources before administration of antibiotics are essential for guiding appropriate antibiotic therapy.

Early identification of the causative organism: This information is crucial for selecting the most effective antibiotic regimen.

Prevention of antibiotic resistance: Judicious use of antibiotics based on culture results helps prevent the development of antibiotic-resistant bacteria.

Choice F rationale:

Vigorous intravenous fluid resuscitation with 0.9% sodium chloride is a cornerstone of septic shock management.

Replenishing intravascular volume: Septic shock often causes profound intravascular volume depletion due to capillary leak and vasodilation. Fluid resuscitation aims to restore circulating volume and maintain organ perfusion.

Improving hemodynamic stability: By increasing preload and cardiac output, fluids help stabilize blood pressure and support vital organ function.

The correct answer is choice d. Auscultate lung fields.

Choice A rationale:

Cupping hands and tapping on the patient’s chest is part of the chest percussion technique, which helps to loosen mucus. However, it is not the first step. Before performing any physical intervention, the nurse must assess the patient’s current respiratory status.

Choice B rationale:

Positioning the patient so that the lung area to be drained is above the trachea is part of postural drainage. This step is crucial but should be done after assessing the patient’s lung fields to determine the areas that need drainage.

Choice C rationale:

Providing mouth care is important for overall hygiene and to prevent infection, especially in patients with respiratory conditions. However, it is not directly related to the immediate assessment and intervention for chest physiotherapy.

Choice D rationale:

Auscultating lung fields is the first step because it allows the nurse to assess the patient’s respiratory status and identify areas with abnormal breath sounds, which will guide the subsequent interventions like chest percussion, vibration, and postural drainage. This assessment ensures that the interventions are targeted and effective.