<p>Introduction: Few studies have addressed the diagnostic and prognostic value of abnormal laboratory findings in COVID-19 patients. Objective: To identify and assess published studies on the role of laboratory parameters to determine the severity of COVID-19 patients. Method: Systematic review on articles identified from NCBI, Pubmed, BMC, Elsevier from 2020-2022. Results: Laboratory parameters: complete blood count, serum electrolyte, renal function, liver function, pancreatic enzymes, D-dimer, inflammatory cytokines, and C-reactive protein have a diagnostic and prognostic value in determining the severity of COVID-19. Conclusion: Laboratory parameters have useful prognostic value in determining of COVID-19 severity.</p><p>Pendahuluan: Penelitian laboratorium menemukan kelainan darah dan abnormalitas lain pada pasien COVID-19 parah, namun nilai prognostiknya hanya sedikit diteliti. Tujuan: Mengidentifikasi peranan parameter laboratorium dalam menentukan keparahan pasien COVID-19. Metode: Review sistematik atas artikel berasal dari NCBI, Pubmed, BMC, Elsevier tahun 2020-2022. Hasil: Parameter laboratorium darah lengkap, elektrolit serum, fungsi ginjal, hati, pancreas, D-dimer, sitokin inflamasi, dan C-reactive protein memiliki nilai diagnosis dan prognosis pasien COVID-19. Simpulan: Parameter laboratorium berperan dalam menentukan keparahan pasien COVID-19.</p>

Introduction: Bilateral pneumothorax is a rare case which happens in 1.3 to 1.9 percent of all cases of  pneumothorax.1 In breast carcinoma patients, it is due to lung metastasis and first selected conservative therapy.2 Lung metastasis can be found in the appearance of pulmonary nodules called cannon-ball metastases in chest X-Ray (CXR).3 Method: Case report based on findings in chest X-Ray. Result: A 42 year-old female came to ER with sudden shortness of breath and pleuritic pain. She was diagnosed with breast carcinoma 3 years prior the ER visit and had undergone mastectomy on breasts and chemotherapy. Physical examination showed bilaterally decreased breath sounds. CXR AP postion showed bilateral pneumothorax and multiple nodules varied in size indicated lung metastases. Chest tubes with water-sealed drainage were inserted in both side of the lungs. CXR after the insertion showed reduction of the volume of pneumothorax in both side of the lungs and cannon-ball metastases in both sides of the lungs. CXR was performed serially until hospital discharge. Discussion: Bilateral pneumothorax which develops in patients who have history of breast carcinoma is considered very rare.It is caused by the metastatic process and treatment.2 CXR can be used to detect the metastasis and its complications such as pneumothorax.4 Conclusion: Bilateral pneumothorax is rarely seen in patients with breast carcinoma. Early detection of lung metastasis and appropriate therapy of tumor can prevent complications such as pneumothorax.Keywords: bilateral pneumothorax; lung metastases; breast carcinoma; chest X-Ray

Introduction: Few studies have addressed the diagnostic and prognostic value of abnormal laboratory findings in COVID-19 patients. Objective: To identify and assess published studies on the role of laboratory parameters to determine the severity of COVID-19 patients. Method: Systematic review of articles identified from NCBI, Pubmed, BMC, and Elsevier from 2020-2022. Results: Laboratory parameters: complete blood count, serum electrolyte, renal function, liver function, pancreatic enzymes, D-dimer, inflammatory cytokines, and C-reactive protein have a diagnostic and prognostic value in determining the severity of COVID-19. Conclusion: Laboratory parameters have functional prognostic value in determining COVID-19 severity. Pendahuluan: Beberapa penelitian telah membahas nilai diagnostik dan prognostik dari temuan laboratorium abnormal pada pasien COVID-19.Tujuan: Mengidentifikasi peranan parameter laboratorium dalam menentukan keparahan pasien COVID-19. Metode: Review sistematik atas artikel berasal dari NCBI, Pubmed, BMC, Elsevier tahun 2020-2022. Hasil: Parameter laboratorium darah lengkap, elektrolit serum, fungsi ginjal, hati, pankreas, D-dimer, sitokin inflamasi, dan C-reactive protein memiliki nilai diagnosis dan prognosis pasien COVID-19. Simpulan: Parameter laboratorium berperan dalam menentukan keparahan pasien COVID-19