This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pharmacology
Adverse effect of Foscarnet includes all except? 
Select and explain. 
A. Hypercalcemia, B. Hyperkalemia, C. Hypocalcemia, D. Hypokalemia
B: Hyperkalemia
Answer: B: Hyperkalemia 
Explanation: Ans. B. HyperkalemiaPotential adverse effects of foscarnet include :-* Renal impairment, hypo- or hypercalcemia, hypo- or hyperphosphatemia, hypokalemia, and hypomagnesemia.* Penile ulceration associated with Foscarnet therapy may be due to high level of ionized drug in the urine.* Nausea, vomiting, anemia, elevation of liver enzymes, and fatigue have been repoed.* The risk of anemia may be additive in patients receiving concurrent zidovudine.* CNS toxicities include headache, hallucinations, and seizures.