The nurse knows the rationale for combination chemotherapy is to:
limit episodes of anticipatory and delayed emesis
lessen the client's risk of developing neutropenia
decrease time intervals between remission
broaden range of cell kill while minimizing toxicities to the client
The Correct Answer is D
A. While limiting emesis is important in cancer treatment, combination chemotherapy primarily focuses on improving efficacy and minimizing toxicities, not specifically targeting nausea and vomiting episodes.
B. Combination chemotherapy can actually increase the risk of neutropenia due to the cumulative effects of multiple agents, as each may independently lower white blood cell counts.
C. Decreasing time intervals between remission is not a primary goal of combination chemotherapy; rather, it aims to achieve better overall treatment outcomes.
D. The main rationale for using combination chemotherapy is to broaden the range of cancer cell kill through different mechanisms of action while minimizing the side effects associated with higher doses of a single agent. This approach can improve treatment efficacy and reduce the likelihood of resistance.
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Correct Answer is B
Explanation
A. High-protein foods are not typically irritating after an esophagogastrectomy and are essential for healing and maintaining nutritional status. Clients should be encouraged to eat balanced meals with adequate protein.
B. Clients recovering from an esophagogastrectomy should avoid snacking between meals to prevent dumping syndrome, a common complication where food moves too quickly from the stomach to the small intestine. Instead, small, frequent meals should be consumed.
C. While pureed foods may be part of the immediate post-operative diet, the long-term goal is to gradually reintroduce solid foods, following the physician's dietary recommendations. A pureed diet is not necessarily required long-term.
D. Lying flat after meals increases the risk of reflux, which can be particularly harmful to clients recovering from esophageal surgery. Clients should be advised to stay upright after eating to aid digestion and prevent reflux.
Correct Answer is B
Explanation
A. An otoscope is used to examine the ear canal and tympanic membrane, not to assess cranial nerve III. This tool is more relevant for assessing cranial nerve VIII (vestibulocochlear), which is responsible for hearing and balance.
B. A penlight is used to assess CN III (oculomotor) by evaluating the pupil's response to light and the ability to move the eye. This nerve controls most of the eye's movements, including constriction of the pupil in response to light.
C. A cotton ball is used to test the sensory function of cranial nerve V (trigeminal), which is responsible for facial sensation. It is not used for assessing CN III.
D. Lavender or other scents may be used to test CN I (olfactory), responsible for the sense of smell, but it is not related to CN III, which governs eye movements and pupil reactions.