Telephone, internet-connected devices (phablet, pc), chat platforms, mobile applications (Skype, Facebook messenger, Whatsapp, to name a few) can be exploited for telemedicine applications. Whatsapp and similar applications are widely used to facilitate clinical communication between physicians, too. Moreover, Whatsapp is used between ED physicians and consultant physicians during ED consultations in which medical information is exchanged. This platform is regarded as a useful application in the consultation of dermatological and orthopaedic cases. Preventing the overcrowding in the ED is key to reducing the transmission risk, and teleconsulting practice is thought to be effective in the diagnosis, treatment and reduction of the risk of disease transmission, most notably in the Covid-19 pandemic process. Video consulting is highly recommended in some countries on the grounds that it is likely to reduce the risk of transmission. Whatsapp-like applications are one of the video-consulting platforms assumed to reduce the risk of contamination by minimizing the patient-doctor contact.

This study thus sets out to investigate the effect of Whatsapp video consultation upon patient admission and discharge times in comparison to bedside consultation in the evaluation of potential Covid-19 patients visiting the Covid-19 outpatient clinic during the pandemic period.

The subjects who presented to ED Covid-19 outpatient clinic between March 11, 2020 and May 31, 2020 and for whom an infectious diseases (ID) physician was consulted (via Whatsapp or at bedside) will be included in the study in accordance with the inclusion and exclusion criteria. Eventually, 54 patients whose consultations were made via Whatsapp and 90 patients whose consultations were made at bedside will be in this study.

Telephone, internet-connected devices (phablet, pc), chat platforms, mobile applications (Skype, Facebook messenger, Whatsapp, to name a few) can be exploited for telemedicine applications. Whatsapp and similar applications are widely used to facilitate clinical communication between physicians, too. Moreover, Whatsapp is used between ED physicians and consultant physicians during ED consultations in which medical information is exchanged. This platform is regarded as a useful application in the consultation of dermatological and orthopaedic cases. Preventing the overcrowding in the ED is key to reducing the transmission risk, and teleconsulting practice is thought to be effective in the diagnosis, treatment and reduction of the risk of disease transmission, most notably in the Covid-19 pandemic process. Video consulting is highly recommended in some countries on the grounds that it is likely to reduce the risk of transmission. Whatsapp-like applications are one of the video-consulting platforms assumed to reduce the risk of contamination by minimizing the patient-doctor contact.

Even though some studies on Whatsapp consultation in ED exist in the literature, we did not encounter any study investigating the effect of Whatsapp-mediated consultation on pandemic polyclinics.

This study thus sets out to investigate the effect of Whatsapp video consultation upon patient admission and discharge times in comparison to bedside consultation in the evaluation of potential Covid-19 patients visiting the Covid-19 outpatient clinic during the pandemic period.

During the coronavirus pandemic process, the patients were consulted with the ID department through the bedside consultation method or video transmission from Whatsapp. The consultation method of the patients will be scanned retrospectively (from the fixed ED phone and the hospital system) and will be recorded in the dataset. The method of consultation through video transmission will be implemented at the beginning of the pandemic process to increase communication between the emergency service and the infectious diseases department.

Duration of video that send on whatsapp for consultation, infection diseases specialist response to video, clinician's response to bedside consultation was saved to dataset. Besides, time from patients application to CT, time from patients application to lab results, duration of patients in emergency service, and time periods of consultation (within working hour [8:00-17:00], or out of working hours [17:00-08:00]) will be also saved.

The subjects who presented to ED Covid-19 outpatient clinic between March 11, 2020 and May 31, 2020 and for whom an infectious diseases (ID) physician was consulted (via Whatsapp or at bedside) will be included in the study in accordance with the inclusion and exclusion criteria.

In this cohort, the subjects whose consultations will be held before admission to another department, and the subjects inflicted with problems involving multiple departments were excluded from the study.In order to isolate potential Covid-19 patients during the pandemic process, these patients were examined at the Covid-19 outpatient clinic under the supervision of ED. Following their examination here, the consultation of those conforming to the potential Covid-19 patient classification will be held with ID department. The potential Covid-19 patients were assessed by an ED physician as specified in the Potential Covid-19 Cases Guide of Ministry of Health. In the Covid-19 pandemic period, not every consultation could be performed at bedside because both ED and ID physicians worked at a schedule twice as busy as normal times in relation to the congestion of working conditions and the organization of pandemic areas. During this pandemic process, consultations via Whatsapp emerged naturally due to the overcrowding in the pandemic outpatient clinic.

The eligible subjects examined by the ED physician who consulted an ID physician at the bedside or via Whatsapp will be evaluated in the study.

Whatsapp Consultation The ID physician was consulted for all the subjects once laboratory results and CT reports were complete. All the consultations were performed with the same smartphone, and every Whatsapp consultation held since the very beginning of the pandemic will be evaluated.

In this type of consultation, Thorax CT images of the patient were turned into a video of approximately 30-35 seconds, and during this video recording, the patient's clinical condition and laboratory results will be also transferred to the ID physician. The ID physician, on the other hand, stated his/her admission-discharge decision via Whatsapp as "hospitalization" or "discharge". Eventually the consultation result will be recorded in the patient's folder. The moment the video was sent will be recorded as the beginning of the patient's consultation period and response time to whatsapp video was saved as consultation response time.

The exclusion criteria in the present study can be listed as follows: the subjects whose consultations were held before admission to another department, the subjects inflicted with problems involving multiple departments and whose consultations were performed via Whatsapp, the subjects whose consultations were held by sending photos, the subjects who were referred from another outpatient clinic and whose consultation procedures were completed in ED and the subjects whose consultations were not replied on the same phone.

Since there is no reference study framed in a similar design, at least 90 people (45 people for each group) were needed to obtain 80% power with 95% confidence as a result of the power analysis conducted in line with the assumptions, presuming that the effect size we expected from the study would be high (f = 0.6).

The data will be analyzed with SPSS package program. Continuous variables were presented as median (IQR) while categorical variables will be provided as numbers and percentages. Kolmogrov-Smirnov analysis was used in normality distribution analysis. When the parametric assumptions were not met, the Mann-Whitney U test will be used to compare these differences. For all the analyses, P <0.05 will be considered statistically significant.

Bedside consultation group

Inclusion Criteria:

.To be examined by the ED physician who consulted an ID physician only at the bedside.

Exclusion Criteria:

.To be consulted by the ED physician via whatsapp and at the bedside (both). .The patient's ID physician was consulted before completing the CT report and laboratory parameter results.

• The subjects whose consultations were held before admission to another department, .The subjects inflicted with problems involving multiple departments and whose consultations were performed via Whatsapp.
• The subjects who were referred from another outpatient clinic and whose consultation procedures were completed in ED

Whatsapp Consultation Inclusion Criteria To be consulted ID physician only only via whatsapp application. Exclusion Criteria

• The subjects whose consultations were held before admission to another department,
• The subjects inflicted with problems involving multiple departments and whose consultations were performed via Whatsapp,
• The subjects The subjects who were referred from another outpatient clinic and whose consultation procedures were completed in ED whose consultations were held by sending photos,
• The subjects who were referred from another outpatient clinic and whose consultation procedures were completed in ED .The subjects whose consultations were not replied on the same phone.

The consultation method of the patients will be scanned retrospectively (from the fixed ED phone and the hospital system) and will be recorded in the dataset.

Duration of video that send on whatsapp for consultation, infection diseases specialist response to video, clinician's response to bedside consultation will be saved to dataset. Besides, time from patients application to CT, time from patients application to lab results, duration of patients in ED and time periods of consultation (within working hour [8:00-17:00], or out of working hours [17:00-08:00]) will be also saved.

The subjects who presented to ED Covid-19 outpatient clinic between March 11, 2020 and May 31, 2020 and for whom an infectious diseases (ID) physician was consulted (via Whatsapp or at bedside) were included in the study in accordance with the inclusion and exclusion criteria.

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