ATI LPN
HESI LPN Fundamentals Test Questions
Question 1 of 5
The skin produces and absorbs which of the following vitamins in conjunction with the ultraviolet rays of the Sun, which activate this particular vitamin's precursor present in the skin?
Correct Answer: A
Rationale: Skin produces and absorbs vitamin D via UV rays activating its precursor, unlike C, E, or K. Nurses teach this for bone health awareness.
Question 2 of 5
Which assessment finding indicates a potential cardiovascular complication of immobility?
Correct Answer: C
Rationale: Dependent edema swelling in lower body parts points to a cardiovascular complication of immobility, arising from poor venous return and fluid buildup due to stasis. Heart rate or cardiac output increases aren't specific to this, and normal blood pressure doesn't flag issues. Nurses check for this to detect circulatory problems early, applying measures like elevation or compression to reduce risks like thrombosis, vital in managing immobility's cardiovascular effects.
Question 3 of 5
A client with anemia presents with fatigue and decreased exercise tolerance. What is the primary indication for initiating oxygen therapy in this client?
Correct Answer: A
Rationale: Increasing oxygen-carrying capacity (A) is the primary indication for oxygen therapy in anemia, compensating for reduced hemoglobin by boosting dissolved oxygen in plasma. Reducing iron deficiency (B) or enhancing erythropoiesis (D) requires other treatments. Tissue healing (C) is a byproduct. This approach mitigates hypoxia symptoms, per hematology care, vital until anemia is corrected.
Question 4 of 5
The nurse is caring for a client with a tracheostomy receiving oxygen therapy. Which intervention should the nurse prioritize to prevent infection and ensure proper oxygen delivery?
Correct Answer: C
Rationale: Applying a sterile dressing (C) over the tracheostomy site prevents infection by barring pathogens and supports oxygen delivery by maintaining a clean airway. Suctioning (A) clears secretions but not infection. Hourly RR (B) is monitoring, not prevention. Humidified oxygen (D) aids comfort, not sterility. Sterile dressing, per tracheostomy care, is the priority.
Question 5 of 5
Which of the following skin lesions is associated with Lyme's disease?
Correct Answer: A
Rationale: A bull's-eye rash (erythema migrans) is a hallmark of Lyme disease, appearing at the tick bite site with a red center and concentric rings, signaling Borrelia infection. Papular crusts, bullae, or plaques align with other conditions, not Lyme's classic presentation. Nurses recognize this lesion for early diagnosis, prompting timely antibiotic treatment to prevent complications like arthritis or neurological issues.