Memory T cells survive in the body even in the absence of antigen.

Which of the following statements regarding mucosal immunity is TRUE?

Which of the following statements is true regarding amino acid supplementation?

Which of the following are acceptable indicators of hypoxemia for purposes of justifying home O2 therapy?I. resting PaO2 of 65 mm Hg (room air)II. drop in Sao2 below 88% during ambulationIII. resting arterial SaO2 below 88% (room air)

A patient with ARDS is receiving mechanical ventilation with the following settings:Mode:         PCVPIP:            20 cmH2Orate:            12 bpmTI:              1 secondI:E:             1:1FiO2:          0.50PEEP:        15 cmH2OVt exhaled: 6 mL/kgABGs:pH:             7.28PCO2:        55 torrPO2:          62 torrThe pulmonologist wants to maintain a PaCO2 of 40 to 45 mmHg. Which of the following would the respiratory therapist recommend?

Compare and contrast immunoglobulins before and after B cells encounter their specific antigen. Describe at least two similarities and two differences.

All of the following are examples of a teratogin except:   

A patient receiving continuous mandatory ventilation in the assist-control mode develops auto-PEEP. Which of the following changes in ventilatory patterns would you consider to minimize the effects of auto-PEEP in this patient?I. decreasing the rateII. using low-rate synchronized intermittent mandatory ventilationIII. decreasing the peak inspiratory flowIV. lowering the VT and letting the PaCO2 rise

Daily exercise can increase your HDL cholesterol levels.

The Dietary Reference Intake (DRI) for sodium is 1,500 mg daily, however, these recommendations do NOT apply to ____.