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Zorluk: OrtaRheumatology and Immunology

Match each disease-modifying antirheumatic drug (DMARD) or immunosuppressive agent to its most characteristic adverse effect or required screening protocol.

  • HydroxychloroquineIrreversible macular toxicity requiring periodic ophthalmologic evaluations
  • EtanerceptReactivation of latent tuberculosis requiring pretreatment screening with an interferon-gamma release assay
  • MethotrexateHepatotoxicity, stomatitis, and cytopenias that can be mitigated by concurrent folic acid administration
  • CyclophosphamideHemorrhagic cystitis and increased risk of bladder transitional cell carcinoma

Cevap

Hydroxychloroquine matches with macular toxicity; Etanercept matches with latent tuberculosis reactivation; Methotrexate matches with hepatotoxicity and cytopenias; Cyclophosphamide matches with hemorrhagic cystitis.
Each immunosuppressive medication has a unique toxicity profile that dictates specific pre-treatment screening and ongoing monitoring. Safe long-term management of rheumatologic diseases requires pairing the drug with its classic adverse effect.

Adım Adım Çözüm

1
Analyze Hydroxychloroquine's toxicity profile.
Identified as causing retinal toxicity (bull's-eye maculopathy).
Hydroxychloroquine binds to melanin in the retinal pigment epithelium, necessitating routine ophthalmologic screening.
2
Analyze Etanercept's mechanism and screening requirements.
Identified as a TNF inhibitor that risks TB reactivation.
TNF-alpha is required to maintain granulomas. Inhibiting it requires ruling out latent tuberculosis prior to initiation.
3
Analyze Methotrexate's mechanism of action and side effects.
Identified as a folate analog causing mucosal and hepatic toxicity.
Inhibiting dihydrofolate reductase disrupts rapidly dividing cells. Folic acid supplementation prevents stomatitis and transaminitis.
4
Analyze Cyclophosphamide's specific metabolic byproducts.
Identified acrolein as the cause of hemorrhagic cystitis.
Acrolein is excreted in the urine and is directly toxic to the bladder urothelium.

Anahtar Kavram

Pharmacologic adverse effects and required monitoring for disease-modifying antirheumatic drugs (DMARDs)
Tahmini Süre:1m 30s
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