The spherical face shield of an astronaut’s helmet is made from polycarbonate with a yield strength of 107 MPa. The shield has an outside diameter of 354 mm and a thickness of 4.7 mm. If the shield is successfully pressure tested to 940 kPa on Earth, determine the factor of safety with respect to yielding.

A nurse is working with a patient who is undergoing a diagnostic workup for suspected asthma. What are the signs and symptoms that are consistent with a diagnosis of asthma? Select all that apply, 3 correct answers.

The nurse documents the vital signs for a patient admitted 2 days ago with gram-negative sepsis: temperature 101.2° F, blood pressure 90/56 mm Hg, pulse 92, respirations 34. Which action should the nurse take next?

The nurse is caring for a client in the ICU admitted with ARDS after exposure to toxic fumes from a hazardous spill at work. The client has become hypotensive. What is the cause of this complication to the ARDS treatment?

A patient presents to the emergency department (ED) after being struck in the chest with a baseball bat. Which initial assessment finding is of most concern to the ED nurse?

A patient in the Surgical Trauma Intensive Care Unit (STICU) develops a sudden onset of narrow-complex tachycardia with a rate of 220 beats per minute. The patient’s blood pressure is 124/64 and the pulse oximetry is 99%. The patient has vascular access in the right arm and has not been given any vasoactive drugs. A 12-lead ECG confirms supraventricular tachycardia (SVT) with no evidence of cardiac ischemia. The heart rate has not responded to a modified valsalva maneuver. What is your next action?

When an efficiency-seeking government maximizes , where is the sum of all individual benefits, C is cost of program implementation, what is X?

A nurse in the emergency department (ED) is assessing a patient following a 25 foot fall. Findings include absent breath sounds in the left lower lobe with dyspnea, blood pressure 118/68 mm Hg, heart rate 124 beats per minute, respirations 38 breaths per minute, and oxygen saturation (SaO2) 92% on room air. Which of the following actions should the nurse take first?

A school nurse is caring for a 20-year-old who is having an asthma attack. What is the preferred intervention to alleviate this client’s airflow obstruction?

A patient previously diagnosed with a pulmonary embolism was on a weight-based heparin protocol at 12 units/kg/hour. His aPTT was drawn at 1800 and was 35 seconds.  Per the heparin order, you will need to increased the heparin by 2 units/kg/hour. What will be the new infusion rate? The patient weighs 157 pounds. (round to the nearest whole number)