Which of the following is the primary pacemaker of the heart?

A. Purkinje fibers
B. SA node
C. Bundle branches
D. AV node
E. Bundle of His


Answer: B

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It has been determined that a patient has activated protein C resistance. Name the most prevalent genetic mutation associated with this finding

a. Guanine to adenine substitution on nucleotide 20210 of the prothrombin gene b. Lysine to glutamic acid substitution on the sixth position on the beta globin chain c. Arginine to glutamine substitution at the 506 position of factor V protein d. Translocation of chromosome 22 onto the long arm of chromosome 9

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Provide the missing number to rewrite each of the following fractions as a higher equivalent fraction.a. b. c.

What will be an ideal response?

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A patient has a 750 mL IV that has been dispensing the medication for 5 hours at 150 mL/hr. After 3 hours, how much of the IV bag has been infused?

What will be an ideal response?

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Numbers 3 and 4 on the figure demonstrate ________.

A. depression and inversion B. eversion and protraction C. inversion and protraction D. protraction and retraction E. elevation and inversion

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