Correct Answer: D

Rationale: The correct answer is 'myocardium.' Highly perfused tissues include vital organs like the brain, heart, kidneys, adrenal glands, and liver. The myocardium, being heart muscle, receives the highest amount of cardiac output and thus the highest amount of a drug.

Choices A, B, and C are incorrect because the skin and adipose tissue are poorly perfused, while skeletal muscle is less perfused compared to vital organs like the myocardium.

Correct Answer: D

Rationale: Inhalation injury is the most common cause of injury from a house fire. When a fire occurs, the smoke produced contains harmful gases and particles that can be inhaled, leading to serious respiratory issues. This makes inhalation injury the primary concern during a house fire.

Choices A, B, and C are less likely to be the primary cause of injury. While explosions may occur in some cases, inhalation of smoke and toxic fumes is generally the most prevalent danger. Falls from windows and thermal damage to the skin are also significant risks but typically occur after inhalation injuries in the sequence of events during a house fire.

Correct Answer: A

Rationale: When a client is having a seizure and their blood oxygen saturation drops significantly, the priority action for the nurse is to open the airway. This allows for adequate oxygenation and ventilation. Administering oxygen can come after ensuring the airway is clear. Suctioning the client should be done if there is an airway obstruction, and checking for breathing is part of the assessment but opening the airway takes precedence to ensure proper oxygenation and ventilation during a critical event like a seizure.

Correct Answer: D

Rationale: Anticonvulsants like Dilantin should be held 24-48 hours before an EEG to prevent interference with the test results. Medications such as tranquilizers, barbiturates, and other sedatives should also be avoided. Lasix, Cardizem, and Lanoxin do not belong to these categories and are not known to interfere with EEG results.

Correct Answer: B

Rationale: The correct answer is Standard Precautions. Standard precautions are taken in all situations for all clients and involve all body secretions except sweat. They are designed to reduce the rate of transmission of microbes from one host to another or one source to another. Respiratory Isolation (
Choice
A) is used for diseases transmitted by airborne particles, not secretions and blood. Contact Isolation (
Choice
C) is for clients known or suspected to be infected with microorganisms that can be transmitted by direct or indirect contact. Droplet Isolation (
Choice
D) is used for diseases transmitted by large respiratory droplets expelled during coughing, sneezing, talking, or procedures.