A patient is diagnosed with right ventricular ischemia. The nurse realizes that which of the following coronary arteries provides the blood supply to this part of the heart?
1. left main coronary artery
2. right coronary artery
3. left anterior descending artery
4. left circumflex artery
2
Rationale: There are four primary coronary arteries consisting of the left main coronary artery, left anterior descending artery, left circumflex artery, and right coronary artery. The left anterior descending artery and the left circumflex artery are branches of the left main coronary artery after its bifurcation. The right coronary artery predominantly supplies the right ventricle and atrium and gives rise to the posterior descending artery. The left anterior descending artery supplies the anterior aspect of the left ventricle and septum, and the left circumflex artery supplies the lateral walls of the left ventricle.
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During a breast examination on a female patient, the nurse notices that the nipple is flat, broad, and fixed. The patient states it "started doing that a few months ago." This finding suggests:
a. Dimpling. b. Retracted nipple. c. Nipple inversion. d. Deviation in nipple pointing.
A p.r.n. order must indicate the minimum time between dosages such as q4h. _____
Indicate whether the statement is true or false.
The nurse is reviewing discharge instructions with the mother of a toddler who was hospitalized for constipation. Which statement made by the toddler's mother indicates the need for further education?
A) "I should recognize that when my child walks stiffly on his tiptoes, this could indicate withholding." B) "Rocking and crossing the legs could be a sign of withholding." C) "I need to make sure my child eats a low-fiber diet." D) "Soiling could be a sign of withholding because of involuntary overflow."
The nurse teaches a patient with rheumatic disease who is being prescribed antimalarials to monitor him for:
A) Tinnitus B) Visual changes C) Stomatitis D) Hirsutism