When asked if taking herbal supplements will help slow down the aging process, the nurse bases the response given on the:
a. Cross-link theory
b. Error theory
c. Free radical theory
d. Nutrition theory
ANS: C
The free radical theory states that aging occurs as a result of random damage from free radi-cals. Research is ongoing on the ability of substances with antioxidant effects to counter the actions of free radicals. The cross-link theory describes aging in terms of the accumulation of errors of cross-linking or stiffening of proteins in the body. The error theory is actually a category of theories and not a theory itself. The nutrition theory is not one of the theories of aging.
You might also like to view...
What should you call the patient?
A) by their last name B) by their first name C) by the name they prefer to be called D) any of the above
The school-age child is admitted to the pediatric neurologic unit with a suspected craniopharyngioma. Which assessment data collected by the nurse supports the suspected diagnosis? Select all that apply
1. Evening nausea 2. Excessive urination 3. Nystagmus 4. Headaches 5. Orbital ecchymosis
In an unconscious patient, eye movements are tested by the oculocephalic response. Which statements regarding the testing of this reflex are true? (Select all that apply.)
a. Doll's eyes absent indicate a disruption in normal brainstem processing. b. Doll's eyes present indicate brainstem activity. c. Eye movement in the opposite direction as the head when turned indicates an intact reflex. d. Eye movement in the same direction as the head when turned indicates an intact reflex. e. Increased intracranial pressure (ICP) is a contraindication to the assessment of this reflex. f. Presence of cervical injuries is a contraindication to the assessment of this reflex.
A patient who was treated for colorectal cancer last year now has a malignant tumor in the lung. The nurse realizes that this patient is most likely experiencing which phenomenon?
1. Metastasis 2. Contact inhibition 3. Differentiation 4. Hypertrophy