SOB and High Fever. COVID-19 positive?

35 years old young male without any comorbidity, presented with cough, sneezing, fever n dyspnoea at rest of just 4 days duration. On admission, BP was 100 systolic, Spo2 was 68% on air, Temp was 99.6 Pulse 112/min RS examination revealed bilateral crackles Blood investigations revealed N/L ratio =4 WBC 9100 Platelets 361000 HB 13 SGPT 100 CREAT 0.81 CRP 66 FERRITIN 550 d Dimer 1300 LDH 600 ABG on room air was:- pH 7.2 PO2 was 41 PCO2 was 56 Bicarb 19 RT PCR Positive for SARS COV-2 Please give your valuable opinion for further management..

Fever, dyspnea, and dry cough 7 days ago. Diagnosed with COVID-19 with positive nasal swab and IgM antibodies. Worsening dyspnea over the past 2 days. D-dimer 9.05. What are your suggestions on this?

A 65 year old female presented to OPD with complaints of breathlesness and dry cough for last 3 days. She has tested negative for COVID 19 Antigen test report. Spo2 - 87% Pulse - 62/min BP - 100/70mmHg Kindly comment on line of management for such patient?

This patient was admitted to the ICU with COVID pneumonia a few weeks ago and due to a very high D-dimer level, empiric anticoagulation was initiated. The night prior to extubation, the patient's oxygen saturation plummeted, fresh blood appeared in the ventilator tubing, and the second X-ray was obtained.

A 45-year-old female presented with the following symptoms - Shortness of breath - Productive cough last 2 weeks - Weight loss - Fever Background history - HIV positive on 2nd line ARVs - Unknown CD4 and viral count - No known covid contacts On examination - Vitals: BP 143/92, HR 123, Sats: 52% on RA and 94% on polymask O2, RR- 38 - General: increased BMI, half-and-half nails, generalized lymphadenopathy - Resp: mild alar flaring, SCR, scattered crackles. - others systems: nothing of note What special investigations would you like to do and what would be your differential diagnoses?