Adult Health Nursing Test Bank

Correct Answer: A

Rationale: The correct answer is A: Amoxicillin. Amoxicillin is the first-line treatment for GAS pharyngitis due to its effectiveness against Streptococcus bacteria. It is a penicillin-class antibiotic recommended by guidelines. Azithromycin is an alternative for patients allergic to penicillin. Cephalexin is not the first-line choice for GAS. Clindamycin is reserved for patients allergic to both penicillin and macrolides.

Correct Answer: D

Rationale: The correct answer is D: Teeth. Teeth are responsible for the initial mechanical breakdown of food during mastication. Step 1: Teeth use their hard surfaces to chew and grind food into smaller pieces. Step 2: This process increases the surface area of the food, making it easier for digestive enzymes to break down. Step 3: The tongue aids in moving the food around the mouth but does not break down the food mechanically. Pharynx is responsible for swallowing, not mastication. Salivary glands produce saliva that helps in the lubrication and digestion of food, but they do not directly participate in the mechanical breakdown of food.

Correct Answer: D

Rationale: The correct answer is D: Transporting the patient to a medical facility for antivenom administration. This is recommended because antivenom is the definitive treatment for snakebites. Tourniquets (choice A) can worsen tissue damage and should be avoided. Elevating the limb (choice B) may not prevent venom spread. Making an incision (choice C) can lead to infection and increased venom absorption. Antivenom administration at a medical facility is crucial for proper management of snakebites.

Correct Answer: B

Rationale: The most appropriate initial management for the patient described is hemodialysis. Hemodialysis is essential for managing chronic kidney disease with severe symptoms and electrolyte imbalances like hyperkalemia and metabolic acidosis. Hemodialysis helps to remove urea and creatinine from the blood, correct electrolyte abnormalities, and improve symptoms such as fatigue, dyspnea, and peripheral edema. Initiation of ACE inhibitor therapy (Choice A) is contraindicated in severe kidney disease due to the risk of worsening renal function. Intravenous administration of calcium gluconate (Choice C) is used for acute hyperkalemia with cardiac toxicity, not for initial management. Sodium bicarbonate administration (Choice D) may help correct metabolic acidosis, but it does not address the underlying cause or the need for urgent renal replacement therapy.

Correct Answer: A

Rationale: The correct answer is A: Active artificial immunity. This is because the person's immune system is actively stimulated by the vaccine to produce antibodies against Covid-19. It is considered artificial because it is acquired through vaccination rather than natural exposure to the disease. B: Active natural immunity is incorrect because it refers to immunity acquired through natural exposure to the disease. C: Passive natural immunity is incorrect because it refers to temporary immunity passed from mother to baby through breast milk or placenta. D: Passive artificial immunity is incorrect because it refers to receiving pre-formed antibodies, such as through an injection of antibodies rather than the body producing them itself.