HESI LPN
Adult Health 2 Final Exam
1. A client is admitted with a diagnosis of diabetic ketoacidosis (DKA). Which laboratory finding is most indicative of this condition?
- A. Serum glucose of 180 mg/dL
- B. Blood pH of 7.30
- C. Positive urine ketones
- D. Serum bicarbonate of 25 mEq/L
Correct answer: C
Rationale: The correct answer is C: Positive urine ketones. In diabetic ketoacidosis (DKA), the body breaks down fat for energy due to a lack of insulin, leading to ketone production. Positive urine ketones are a hallmark laboratory finding in DKA as they directly reflect the presence of ketosis. Choice A, serum glucose of 180 mg/dL, may be elevated in DKA, but it is not specific to this condition. Choice B, blood pH of 7.30, often shows acidosis in DKA, but urine ketones are more specific to the presence of ketosis. Choice D, serum bicarbonate of 25 mEq/L, would typically be low in DKA due to acidosis rather than elevated.
2. A client with asthma is prescribed a corticosteroid inhaler. What instruction should the nurse give about the inhaler?
- A. Use it only during asthma attacks
- B. Rinse the mouth after each use to prevent oral thrush
- C. It will provide immediate relief during an asthma attack
- D. Increase the dose if breathing does not improve
Correct answer: B
Rationale: The correct instruction for a client using a corticosteroid inhaler is to rinse the mouth after each use to prevent the development of oral thrush, a common side effect of these inhalers. Choice A is incorrect as corticosteroid inhalers are often used regularly as a maintenance treatment, not just during asthma attacks. Choice C is incorrect because corticosteroid inhalers provide long-term control of asthma symptoms, not immediate relief during an attack. Choice D is incorrect and potentially dangerous advice as increasing the dose without medical guidance can lead to adverse effects.
3. Which nonfood item is the most common cause of respiratory arrest in young children?
- A. Broken rattles
- B. Buttons
- C. Pacifiers
- D. Latex balloons
Correct answer: D
Rationale: The correct answer is D, Latex balloons. Latex balloons can pose a significant choking hazard to young children if inhaled, potentially leading to respiratory arrest. Broken rattles, buttons, and pacifiers are not typically known to cause respiratory arrest in young children. While these items can present choking hazards as well, the most common cause of respiratory arrest among young children is due to inhaling latex balloons.
4. During a tonic-clonic seizure, what is the nurse's priority intervention?
- A. Insert an oral airway
- B. Administer oxygen via nasal cannula
- C. Restrain the client's arms and legs
- D. Protect the client's head from injury
Correct answer: D
Rationale: During a tonic-clonic seizure, the nurse's priority intervention is to protect the client's head from injury. This is crucial to prevent trauma, as head injuries can be severe during a seizure. Inserting an oral airway may cause injury or obstruction during the seizure and is not recommended. Administering oxygen via nasal cannula can be done after ensuring the client's safety. Restraining the client's arms and legs is also not recommended as it can lead to further injury or harm.
5. Based on the Nursing diagnosis of 'Potential for infection related to second and third degree burns,' which intervention has the highest priority?
- A. Application of topical antibacterial cream
- B. Use of careful hand washing technique
- C. Administration of plasma expanders
- D. Limiting visitors to the burned client
Correct answer: B
Rationale: The highest priority intervention in this scenario is B, the use of careful hand washing technique. Proper hand hygiene is essential in preventing infection, especially in individuals with compromised skin integrity like those with burns. By practicing careful hand washing, healthcare providers reduce the risk of introducing harmful pathogens to the burn wound, thus lowering the chances of infections. Choice A, application of topical antibacterial cream, is important but should follow ensuring proper hand hygiene. Choice C, administration of plasma expanders, is not directly associated with preventing burn-related infections. Choice D, limiting visitors, is significant for infection control, but ensuring proper hand hygiene outweighs this intervention in terms of priority.
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