It should be A because this system relies on antigens which are specific substance found in foreign microbes.
The conduction that is blocked/delayed along the cardiac path during a heart block would be the pathway from the SA node to the AV node.
Answer:The nurse should include in teaching plan the physiologic effect of a spontaneous pneumothorax, air will move from the lung into the pleural space. In addition primary spontaneous pneumothorax is likely due to the formation of small sacs of air (blebs) in lung tissue that rupture, causing air to leak into the pleural space.
Answer:
Most patients have families that are providing some level of care and support. In the case of older adults and people with chronic disabilities of all ages, this “informal care” can be substantial in scope, intensity, and duration. Family caregiving raises safety issues in two ways that should concern nurses in all settings. First, caregivers are sometimes referred to as “secondary patients,” who need and deserve protection and guidance. Research supporting this caregiver-as-client perspective focuses on ways to protect family caregivers’ health and safety, because their caregiving demands place them at high risk for injury and adverse events. Second, family caregivers are unpaid providers who often need help to learn how to become competent, safe volunteer workers who can better protect their family members (i.e., the care recipients) from harm.
Explanation:
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