Nokea
What lab value should be prioritized in a patient with HIV?
- A. CD4 T-cell count below 180 cells/mm3
- B. White blood cell count
- C. Serum albumin levels
- D. Hemoglobin levels
Correct Answer: A
Rationale: The correct answer is A: CD4 T-cell count below 180 cells/mm3. Monitoring the CD4 T-cell count is crucial in patients with HIV as it indicates the level of immunocompromise. A count below 180 cells/mm3 signifies severe immunocompromise and an increased risk of opportunistic infections. Choices B, C, and D are not the priority lab values in HIV management. While white blood cell count, serum albumin levels, and hemoglobin levels are important, they do not directly reflect the immune status and progression of HIV as the CD4 T-cell count does.
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What are the manifestations of increased intracranial pressure (IICP)?
- A. Restlessness, confusion, irritability
- B. Severe nausea and vomiting
- C. Elevated blood pressure and bradycardia
- D. Decreased heart rate and altered pupil response
Correct Answer: A
Rationale: The correct manifestations of increased intracranial pressure (IICP) include restlessness, confusion, and irritability. These symptoms are a result of the brain being under pressure inside the skull. Severe nausea and vomiting (Choice B) are more commonly associated with increased intracranial pressure in children. Elevated blood pressure and bradycardia (Choice C) are not typical manifestations of increased intracranial pressure; instead, hypertension and bradycardia may be seen in Cushing's reflex, which is a late sign of increased IICP. Decreased heart rate and altered pupil response (Choice D) are also not primary manifestations of increased intracranial pressure, although altered pupil response, like a non-reactive or dilated pupil, can be seen in some cases.
During an escharotomy on a patient with a burn injury, what is the purpose of this procedure?
- A. To release pressure and improve circulation in the affected area
- B. To remove dead tissue from the burn area
- C. To improve breathing by reducing skin tightness
- D. To prevent infection in the burned area
Correct Answer: A
Rationale: Corrected Question: During an escharotomy on a patient with a burn injury, the purpose of this procedure is to release pressure and improve circulation in the affected area. This intervention is crucial in severe burns where the formation of eschar (dead tissue) can lead to increased pressure, compromising circulation and potentially causing further tissue damage. Choices B, C, and D are incorrect because escharotomy specifically aims to address pressure and circulation issues in severe burn injuries, rather than removing dead tissue, improving breathing, or preventing infection.
What medication should be administered first for wheezing due to an allergic reaction?
- A. Albuterol via nebulizer
- B. Cromolyn via nebulizer
- C. Methylprednisolone IV
- D. Aminophylline IV
Correct Answer: A
Rationale: The correct answer is A, Albuterol via nebulizer. Albuterol is the first-line treatment for wheezing caused by an allergic reaction because it quickly opens the airways by relaxing the muscles around the airways. Cromolyn (choice B) is used more for prevention rather than immediate relief of symptoms. Methylprednisolone (choice C) and Aminophylline (choice D) are not the first-line treatments for acute wheezing due to an allergic reaction.
What is the primary concern for a patient with a CD4 T-cell count below 180 cells/mm³?
- A. Increased risk of severe infection
- B. Increased risk of anemia
- C. Increased risk of bleeding
- D. Increased risk of dehydration
Correct Answer: A
Rationale: A CD4 T-cell count below 180 cells/mm³ indicates a severely immunocompromised state, leading to an increased risk of severe infection. In individuals with low CD4 counts, the immune system is significantly weakened, making them more susceptible to opportunistic infections. Anemia (choice B), bleeding (choice C), and dehydration (choice D) are not the primary concerns associated with a low CD4 T-cell count. While these conditions may occur as secondary effects or complications, the primary focus is on preventing and managing severe infections in patients with severely compromised immune systems.
A patient diagnosed with hypokalemia is at risk for which condition?
- A. Cardiac dysrhythmias
- B. Muscle weakness
- C. Seizures
- D. Bradycardia
Correct Answer: A
Rationale: Patients diagnosed with hypokalemia are at risk for cardiac dysrhythmias due to low potassium levels. Hypokalemia can lead to abnormalities in the electrical conduction system of the heart, potentially causing irregular heart rhythms. Muscle weakness (Choice B) is a symptom commonly associated with hypokalemia, but the question asks about conditions the patient is at risk for, not specific symptoms. Seizures (Choice C) are not typically associated with hypokalemia; they are more commonly linked with conditions such as epilepsy. Bradycardia (Choice D) refers to a slow heart rate, which is not a typical risk associated with hypokalemia; instead, tachycardia (fast heart rate) is more commonly observed in patients with low potassium levels.