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: Gynaecology & Obstetrics
Which of the laboratory test supports the diagnosis of preeclampsia 
Select and explain. 
A. Platelet count 103,000 / μ L., B. Creatinine 1.14 mg / dL., C. Alkaline phosphatase 138 IU / L., D. Total protein of 258 mg in 24 hour urine.
A: Platelet count 103,000 / μ L.
Answer: A: Platelet count 103,000 / μ L. 
Explanation: Pre - eclampsia Diagnostic criteria

B.P > 140 /90 mmHg after 20 weeks in previously normotensive women
Proteinuria > 300 mg / 24 hours or
	Protein : Creatinine ratio > 0.3 or
	Dipstick 1 + Persistent.
Platelets < 100,000 / μ L
Creatinine > 1.1 mg / dL
Serum transaminase levels twice normal.