How it Works
Try Naxlex NCLEX-RN (Free-Trial)

Which of the following antibodies would you find in the plasma of a person with type O blood?

A.

anti-A and anti-B

B.

anti-A

C.

anti-B

D.

Not enough information to answer

Answer and Explanation

The Correct Answer is A

a) anti-A and anti-B: People with type O blood have: No antigens (neither A nor B) on their red blood cells, Both anti-A and anti-B antibodies in their plasma This is because: The immune system produces antibodies against the A and B antigens that are not present on the person's own red blood cells. Type O individuals lack both A and B antigens, so they develop both antibodies

b) anti-A alone would be found in type B individuals
c) anti-B alone would be found in type A individuals
d) No enough information: There is enough information - blood type determines the antibodies present


Get 100+ Naxlex Exit Exams for $79 Try Naxlex NCLEX-RN (14 Day Free-Trial)

Naxlex Comprehensive Predictor Exams

Free Nursing Study Resources

Related Questions

Correct Answer is A

Explanation

a) Hormonal: This refers to the stimulation of one endocrine gland by hormones released from another gland. GnRH from the hypothalamus stimulates the anterior pituitary to release LH/FSH, which then stimulate the ovaries to secrete estrogen. Thus, this is hormonal control.

b) Neural: Neural stimulation involves direct innervation (e.g., adrenal medulla stimulated by the sympathetic nervous system), which does not apply here.

c) Negative Feedback: This refers to a regulatory mechanism, not the initial cause of estrogen secretion. Estrogen can negatively feedback on GnRH, but that’s not the mechanism being asked.

d) Humoral: Humoral stimuli refer to changes in blood levels of ions or nutrients (e.g., calcium regulating PTH), not hormones.

Correct Answer is B

Explanation

a) Low level of iron concentration in the blood: Iron is necessary for hemoglobin synthesis, but it does not directly stimulate EPO production.

b) Low level of oxygen concentration in the blood: Hypoxia is the primary stimulus for EPO release, which then promotes red blood cell production to increase oxygen-carrying capacity.

c) Low number of red blood cells in the blood: While anemia can lead to hypoxia, it is the oxygen deficit (not RBC count itself) that directly stimulates EPO.

d) High number of red blood cells in the blood: This would decrease EPO production through negative feedback.

Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.

Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today

Register