According to the molecular orbital (MO) theory, when two carbon atoms bond together, their 2p orbitals combine to form:

Identify structure A on the model below. 

Which of the following is true in the indirect pathway of allorecognition?

An 18 year old 5’6”, 125 lb female patient was admitted to the MICU 2 days ago for spinal meningitis. She developed sepisis and suffered hypercapnic respiratory failure. The patient was intubated and placed on VC-CMV, f = 12, Vt = 600 mL, PEEP 5 cmH2O, FiO2 40%. Twenty-four hours later, the patient’s oxygen need drastically increased, lung compliance decreased and CXR developed bilateral fluffy infiltrates. The most appropriate action to take include which of the following?

What type of capillaries have large cavities within their endothelial cells and are the leakiest?

A patient receiving a nebulizer treatment with 3% saline complains of shortness of breath. A respiratory therapist should:

What kind of effector cell is recruited from the bone marrow during an innate immune response?

Match the sampling method to its description:

Which of the following is a true statement about physical activity and aging in general?

An ARDS patient is being mechanically ventilated, the respiratory therapist hears the high pressure alarm sounding with each inspiration. Upon assessment, the RRT hears no breath sounds on the right, tracheal shift to the left and a hyperresonant note upon percussion on the right is noted. The patient has become diaphoretic, tachycardic, hypotensive and has a decreased cardiac output. What action should be taken at this time?