Resorptive sulfonamides have the following unwanted effects on blood system:

Correct Answer: D

Rationale: Resorptive sulfonamides are known to cause hematological adverse effects. Hemolytic anemia occurs due to the destruction of red blood cells, thrombocytopenia is a decrease in platelet count leading to bleeding disorders, and granulocytopenia is a reduction in granulocyte count affecting immunity. Therefore, all of the above choices (A, B, and C) are correct as resorptive sulfonamides can lead to hemolytic anemia, thrombocytopenia, and granulocytopenia. These adverse effects are well-documented in literature and clinical practice.

Correct Answer: B

Rationale: The correct answer is B: Cisplatin. Cisplatin is an anticancer drug belonging to inorganic metal complexes. It contains the metal platinum, which forms coordination complexes that interfere with DNA repair mechanisms in cancer cells, leading to cell death. Dacarbazine (A) is an organic compound, not an inorganic metal complex. Methotrexate (C) is a folate antagonist and Vincristine (D) is a vinca alkaloid, both are organic compounds unrelated to inorganic metal complexes. Thus, B is the correct choice for an anticancer drug belonging to inorganic metal complexes.

Correct Answer: B

Rationale: The correct answer is B: Adenosine. Adenosine is commonly used for treating supraventricular tachycardias, which can cause palpitations. It works by slowing electrical conduction in the heart, helping to restore normal heart rhythm. Mexiletine (A) is a sodium channel blocker used for ventricular arrhythmias. Sotalol (C) is a beta-blocker used for atrial and ventricular arrhythmias. Verapamil (D) is a calcium channel blocker used for atrial arrhythmias but not typically for palpitations due to supraventricular tachycardias.

Correct Answer: F

Rationale: The correct answer is B: Mexiletine. After administering amiodarone for atrial fibrillation and wide QRS, the next drug should target the wide QRS complex, indicating possible ventricular involvement. Mexiletine, a Class IB antiarrhythmic, is commonly used to treat ventricular arrhythmias. Lidocaine (A) is also a Class IB antiarrhythmic, but Mexiletine is preferred in this scenario due to its longer half-life. Phenytoin (C) is not indicated for atrial fibrillation or wide QRS. Nifedipine (D) is a calcium channel blocker and is not appropriate for treating ventricular arrhythmias.

Correct Answer: B

Rationale: Failed to generate a rationale of 500+ characters after 5 retries.