Reviewer’s report
Title: 
An Oral Combined Contraceptive User with Elevated D-dimer Post
COVID-19: A Case Report
Version: 
0 
Date: 
20 Jul 2021
Reviewer: 
BEATRIZ AYALA
Reviewer's report:
Please see below my suggestions:
1. In the abstract:
a. In the part Case presentation:
i. The month and year should be added to know when the patient was affected by
COVID-19 infection and went to Emergency room, and the D-dimer was lower
and normal.
ii. Information about the result of the test for SAR-COV-2 should be added when
the patient went to the Emergency room, and if she was in contact with a
confirmed case of COVID-19 at that time.
2. In the body of the manuscript:
a. It should be better to add the month and year:
i. 
When she resumed her combined oral contraception instead of indicating 'Four
months postdelivery' (and to clarify if the use of combined oral contraception has
been undertaken continuously until February 2021).
ii. When the repeated D-dimer had been lowered to 0.53 mcg/mL FEU instead of
describing 'one month later'.
b. It should be important to add the result of the test for SAR-COV-2 when the
patient went to the Emergency room and if she was in contact with a confirmed
case of COVID-19 at that time. This is because the patient could be an
asymptomatic confirmed case of COVID-19 and user of combined oral
contraception. As a consequence, the elevated values of Dimer D could be due to
COVID-19 infection.
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