Answer:
The correct answer is A.
Explanation:
For a <u>young, healthy person, weighing 70kg,</u> resting cardiac output is approximately 5 liters per minute (assuming a heart rate of 70 bpm)
70ml stroke volume x 70 beats per minute = 5 liters/min
Stroke volume is the amount of blood ejected by the left ventricle with each contraction (normal value 70ml)
Answer:Headaches in the postpartum period can have a number of causes, some of which deserve medical attention. Total or nearly total regression of varicosities is expected after childbirth. Carpal tunnel syndrome is relieved in childbirth when the compression on the median nerve is lessened. Periodic numbness of the fingers usually disappears after childbirth unless carrying the baby aggravates the condition.
Explanation:
Answer: d. Confounding
Explanation:
In the context of a scientific study such as this one, a confounding factor is one that has influence on both the exposure and event variable(s), which may lead to over- or underestimation of the direct relationship between them (if any).
For instance: In this example, researchers may have had reason to believe that male gender is associated with both higher risk of obesity (the exposure variable) and adult-onset asthma (the event variable). If gender is not taken into account, one may claim that the finding of an association between obesity and asthma is simply an artifact due to the high proportion of male patients (likely to present with both). <em>Controlling</em> for that variable (such as by matching, as in this example) allows researchers to test for this hypothesis.
Answer:
the correct answer is option a, b, d, and f.
Explanation:
When the body is not able to make enough healthy RBCs due to B-12 deficiency this condition called pernicious anemia. It is a treatable condition with the help of the B-12 shots or pills. The major reason is the lack of a stomach protein known as Intrinsic factor which is essential for the absorption of the B-12.
Symptoms associated with this condition are -
Fatigue, shortness of breath, cold hands and feet, Paresthesias, feeling dizzy, chest pain, pale or yellow skin, depression, and trouble focusing and others.
Thus, the correct answer is option a, b, d, and f.
