The characteristic plateau in the action potential developed during cardiac muscle contraction is:
a. caused by the removal of calcium ions from the sarcolplasmic reticulum and their transfer to the interstitial fluid outside of the cell
b. due to the opening of fast sodium channels in the sarcolemma
c. produced by the tendency of cardiac muscle fibers to repolarize very quickly
d. the result of the gradual opening of voltage gated calcium channels and the slow movement of calcium ions to the inside of the cells

This gentleman has worsening bilateral hydronephrosis. he did not have much of a post void residual on his bladder scan. he is taken to the operating room to have a bilateral cystoscopy and retrograde pyelogram. cpt code: icd10-cm code: icd10-cm code: icd10-cm code

Anurse is preventing teaching to a client who has a new prescription for paroxetine. the nurse should instruct the client to monitor for which of the following adverse effects? a. peripheral edema b. alopecia c. tinnitus d. drowsiness

Mr. wayne is a 38-year-old man with a significant history of elevated cholesterol levels. his father died at age 42 from a massive heart attack secondary to elevated cholesterol and triglycerides, and two of his older siblings are currently taking medications to lower their cholesterol levels. mr. wayne makes an appointment to discuss his risk for hypercholesterolemia. the nurse recognizes that mr. wayne is at risk for familial hypercholesterolemia because this is an autoomal dominant inherited condition. a. describe the pattern of autosomal dominant inheritance. b. mr. wayne asks what chance his children have of developing familial hypercholesterolemia. how should the nurse respond? c. explain the phenomenon of penetrance observed in autosomal dominant inheritance.