A 2-stage vapor-compression refrigeration cycle uses R134a….

A 2-stage vapor-compression refrigeration cycle uses R134a. The low & high compressors have outlet pressures of 200 and 400 kPa, respectively. The lowest pressure in the cycle is 60 kPa. The cooling capacity is 20 kW. The refrigerant is a saturated liquid at the inlet of each expansion valve and a saturated vapor at the inlet of each compressor, and the compressors are isentropic. (a) Sketch this cycle on a T-s diagram relative to the saturation curve, and label points 1-8. (b) What is the mass flow rate through the evaporator in kg/s? (c) What is the quality of the separator inlet stream that is a mixture? (d) What is the specific enthalpy of the higher-pressure compressor inlet, in kJ/kg? (e) What is the mass flow rate through the condenser, in kg/s? Enter this value in the box below  

Your patient is a 45-year-old bus driver found unresponsive…

Your patient is a 45-year-old bus driver found unresponsive on the bus. The patient is unresponsive to pain, has snoring respirations at 8 per minute, and has flushed, warm, and diaphoretic skin. The pulse of 58 and the blood pressure is 186/110. Which of the following would be the LEAST helpful in determining the cause of the above patient’s condition?

You arrive in the nurses office to find a 9 YOF, on the nurs…

You arrive in the nurses office to find a 9 YOF, on the nurses bed. The patients mother is at her side, there is no healthcare worker present as this is a teacher work day.  The mother tells you, “my daughter Katie, has been having the episodes where she gets really dizzy, sick to her stomach, pale, sweaty and can’t catch her breath, except this time she won’t wake up. That part has never happend before”Based on the information provided by the mother, your top TWO differentials are

You receive a call to the county jail for a male inmate who…

You receive a call to the county jail for a male inmate who is unresponsive. According to the jailor, the patient was arrested for being “drunk.” Your assessment reveals that the patient is profusely diaphoretic, and his respirations are rapid and shallow. His blood glucose level reads 30 mg/dL. As your partner assists the patient’s ventilations, you start an IV and administer 50% dextrose. Reassessment reveals that the patient is responsive to pain only and his blood glucose level is 46 mg/dL. You should