The charge nurse on the critical care respiratory unit is evaluating arterial blood gas values of several clients.
Which client should the charge nurse see first?
Client 4, admitted with a pneumothorax
Client 1. admitted with chronic pulmonary disease
Client 2, admitted with acute respiratory distress syndrome
Client 3, admitted with reactive airway disease
The Correct Answer is B
Acute respiratory failure manifests through alveolar hypoventilation and severe ventilation-perfusion mismatch, leading to uncompensated acidemia. When the pH drops below 7.35 alongside rising PaCO2, it signifies a failure of respiratory homeostasis and impending exhaustion. Failure to intervene promptly in the presence of concomitant hypoxemia leads to rapid cardiac arrest or neurological damage.
Rationale:
A. Client 4 exhibits euglycemic homeostasis with ABG values within the physiological reference ranges. A pH of 7.41 and PaCO2 of 43 mmHg indicate that the pneumothorax is currently stabilized or resolving. This client does not require immediate prioritization over those with active acid-base imbalances and ventilation failure.
B. Client 1 is the priority due to uncompensated acidemia and a pH of 7.34. The significantly elevated PaCO2 of 55 mmHg and hypoxemia indicate acute respiratory failure superimposed on their chronic condition. This client is at the highest risk for respiratory arrest and requires immediate stabilization and potential ventilatory support.
C. Client 2 shows compensated alkalosis or a compensated state because the pH has returned to the low-normal range of 7.35. While the PaCO2 and PaO2 remain abnormal, the body has achieved metabolic compensation through the kidneys. This client is more stable than Client 1, whose pH remains dangerously low.
D. Client 3 presents with respiratory alkalosis characterized by a pH of 7.48 and a low PaCO2 of 30 mmHg. This is typical of hyperventilation during an acute asthma or reactive airway episode. While they require monitoring, they are not currently in a state of acidotic collapse, making them a secondary priority.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Dietary adherence in the Muslim faith is governed by Halal requirements, which categorize foods as permissible or forbidden based on religious law. Practicing individuals avoid substances designated as Haram, focusing instead on meats prepared through specific ritual slaughter and plant-based nutrition. Understanding these religious constraints is essential for nurses to provide culturally competent care and ensure adequate nutritional intake during hospitalization.
Rationale:
A. Poultry is a primary source of permissible protein provided it has been slaughtered according to Islamic guidelines. In most clinical settings, plain chicken is recognized as an acceptable option for clients following a Halal diet. It serves as a safe alternative to other restricted meats, ensuring the client receives essential amino acids for healing and metabolic function.
B. Consumption of swine products is strictly prohibited under Islamic law and represents one of the most significant dietary restrictions. Pork chops contain enzymes and proteins that are considered ritually impure, making them completely unacceptable for a practicing Muslim client. The nurse must ensure that all meal trays are strictly screened to prevent the inclusion of any porcine derivatives.
C. Most commercial sausages are made from pork or contain non-Halal additives and casings that violate religious dietary standards. Even if the meat is beef-based, it must be certified Halal to be considered permissible for consumption. Providing standard processed meats poses a high risk of violating the client’s religious beliefs and spiritual well-being.
D. Alcohol is classified as an intoxicant and is strictly forbidden for consumption in the Muslim faith. This restriction extends to beverages and often includes food items prepared with alcohol as an ingredient or flavoring agent. The nurse must verify that both the diet and any liquid supplements are free from ethanol content to maintain cultural safety.
Correct Answer is C
Explanation
Inhalation anthrax, caused by the aerosolized spores of Bacillus anthracis, is a Tier 1 biothreat agent due to its high mortality rate and environmental stability. Once inhaled, spores are transported to the mediastinal lymph nodes, where they germinate and release potent exotoxins. These toxins induce massive edema, hemorrhage, and tissue necrosis, leading to rapid septicemic shock. Protracted antimicrobial therapy is mandatory to eradicate any remaining dormant spores that may germinate after the initial infection.
Rationale:
A. Inhalation anthrax is not transmitted from person to person, meaning it is not contagious like the flu or tuberculosis. Therefore, housemates of an infected client do not require post-exposure prophylaxis (PEP) unless they were exposed to the same aerosolized source. Public education must emphasize that there is no risk of secondary transmission through casual contact.
B. The anthrax vaccine is not currently recommended for the general pediatric population. It is typically reserved for high-risk adults, such as military personnel, laboratory workers, or those with direct occupational exposure to contaminated animal products. In a bioterrorism event, its use in children would be determined by public health authorities based on the specific scope of the threat.
C. This is the correct information to include because the standard treatment protocol for inhalation anthrax involves a 60-day course of antibiotics (such as ciprofloxacin or doxycycline). This extended duration is critical because anthrax spores can remain latent in the lungs for weeks before germinating. Ensuring full compliance with the two-month regimen is essential to prevent a fatal relapse.
D. An itchy skin lesion that blisters and eventually forms a black eschar is the hallmark of cutaneous anthrax, not the inhalation form. The initial manifestations of inhalation anthrax are often insidious and flu-like, involving fever, malaise, and a nonproductive cough. Educating the public on these respiratory symptoms is vital for early detection and intervention during a suspected outbreak.
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