الفهرس 
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Abstract
The inaccuracy of physical examination at admission to the intensive care unit (ICU) has been extensively reported and life-threatening conditions could be missed at the primary assessment specially in patients presented with acute respiratory symptoms.
Critical care ultrasonography is an essential imaging modality in the ICU used to diagnose and guide the treatment of cardiopulmonary failure.
In view of the above, the present study was undertaken to assess the diagnostic performance and therapeutic impact of POCUS in patients admitted to RICU.
This prospective study was carried out on 102 consecutive patients admitted to the respiratory intensive care units (RICU) of Ain shams university hospitals in the period from October 2016 to July 2017.
All Patients were subjected to complete history taking from the patient &/or his relatives - thorough clinical examination and within 12 hours of ICU admission, all patients were subjected to multi system Point of care ultrasound examination that was performed by a single physician (M.F).
The results obtained were collected, tabulated and submitted for statistical analysis.
The following results were obtained:
1. COPD was the commonest medical disease in between the study population; found in 27 cases. This is followed by Arterial hypertension and Diabetes mellitus in 24 cases each. Dyspnea was the commonest presenting symptom found in 91 cases (89.2%).
2. COPD was the commonest admitting diagnosis found in 28 cases representing 27.4 %; 23 of them kept their diagnosis to the final decision while the rest showed different final diagnosis.
3. Echocardiography had the highest number of newly diagnosed findings followed by pelviabdominal ultrasound.
4. Regarding IVC assessment: 34.3% of the patients had Plethoric IVC, mean IVC diameter was 1.86 cm.
5. US had modified admitting diagnosis in 51% of the patients, confirmed 1ry diagnosis in 35.3%, lead to changes in medications in 41%, promoted further investigation or procedure in 10.8% and 13.7% respectively, showed wrong diagnosis in only 2%, missed a diagnosis in 12 %, and had been not effective either in confirming or modify diagnosis in 29% of the patients