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.

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.

Correct Answer: C

Rationale: Haldol Decanoate, a long-acting antipsychotic depot, is typically administered every 4 weeks, maintaining steady haloperidol levels for schizophrenia control, per psychiatric pharmacology. Shorter intervals suit oral forms; 6 weeks risks gaps. Nurses schedule this, instructing clients on timing to ensure compliance and symptom stability, balancing convenience with therapeutic efficacy.

Correct Answer: C

Rationale: Aricept (donepezil) increases brain acetylcholine by inhibiting cholinesterase, enhancing cognition in Alzheimer's disease a primary mechanism for symptom management, not cure. It doesn't prevent progression, reverse memory loss, or target depression directly. Nurses explain this action, setting realistic expectations, aiding families in understanding its role in slowing cognitive decline temporarily.

Correct Answer: C

Rationale: Folding laundry in a quiet area suits OCD, offering a repetitive, calming task to reduce anxiety card games, groups, or movies may overwhelm with social demands or unpredictability. Nurses assign this, aligning with compulsive tendencies, fostering control and stability in treatment.