Keloids are caused by excessive amounts of which substance in the corneum during connective tissue repair?
a. Elastin
b. Collagen
c. Stroma
d. Reticular fibers
Answer: b. Collagen
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Numbers of white blood cells (WBCs) are increased in circumstances of: (Select all that apply.)
a. inflammation. b. allergy. c. invasion by pathogenic organisms. d. malnutrition. e. immune diseases.
The nurse is caring for an older adult client who develops a fever, rash over the trunk, and back and complains of feeling achy and very tired. What should the nurse suspect is occurring with this client?
A) A roundworm infection B) Bacterial meningitis C) A urinary tract infection D) An autoimmune response
Lisinopril (Prinivil) is often used to treat heart failure because it lowers blood volume. Which of the following best explains how lisinopril lowers blood volume?
1. It has an antagonistic effect on angiotensin-converting enzyme. 2. It lowers aldosterone secretion, a hormone that increases sodium reabsorption. 3. It causes hypernatremia and increased renal tubule permeability, resulting in a diuretic effect. 4. It causes a diuretic effect by lowering the amount of sodium lost in the urine.
The nurse is teaching a class on rhythm abnormalities to patients who have experienced dysrhythmias. The nurse knows that teaching has been effective when a patient makes which statement?
1. "Dysrhythmias cause serious electrolyte imbalances; this results in heart block." 2. "Dysrhythmias are the result of long-standing, uncontrolled hypertension." 3. "Dysrhythmias interrupt the normal electrical pathways in the heart so it can't beat properly." 4. "Dysrhythmias alter the blood flow through the heart and cause it to stop beating."