Special Populations & Supplementation Flashcards
7 cards from real CNC practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Special Populations & Supplementation flashcards as text
A client undergoing chemotherapy asks about antioxidant supplements. What is the MOST appropriate guidance?
Answer: Antioxidant supplements may interfere with chemotherapy and require oncologist approval
Some antioxidant supplements may reduce the oxidative mechanism by which certain chemotherapy agents kill cancer cells, so oncologist consultation is mandatory before any supplementation.
For a client with depression taking an SSRI, which supplement requires a careful interaction warning?
Answer: St. John's Wort
St. John's Wort induces CYP3A4 enzymes and can reduce SSRI blood levels while also risking serotonin syndrome when combined with serotonergic medications.
A wheelchair-bound client with spinal cord injury asks about supplementation for skin integrity. Which nutrient is MOST critical?
Answer: Zinc and vitamin C for wound healing and collagen synthesis
Individuals with spinal cord injury are at high risk for pressure ulcers; zinc and vitamin C are essential for wound healing and collagen synthesis, making them the priority supplements.
Which approach is MOST appropriate when counseling a client who is HIV-positive about supplementation?
Answer: Assess for specific deficiencies, avoid megadoses, and coordinate with their HIV care team
HIV-positive clients often have specific nutrient deficiencies that should be addressed individually; megadosing without testing is inappropriate and ART drug interactions must be managed by the care team.
A client who had Roux-en-Y gastric bypass surgery 2 years ago reports tingling in hands and feet. Which deficiency is MOST likely?
Answer: Vitamin B12 or copper deficiency causing peripheral neuropathy
Peripheral neuropathy after gastric bypass most commonly results from vitamin B12 deficiency (reduced intrinsic factor) or copper deficiency, both of which require lifelong supplementation post-surgery.
Which statement about caffeine supplementation in adolescent athletes is MOST accurate?
Answer: Caffeine use is not recommended for adolescents due to developing nervous systems and limited safety data
Major pediatric and sports nutrition organizations advise against caffeine supplementation in adolescents due to their developing nervous systems, cardiovascular sensitivity, and insufficient safety data.
A client with non-alcoholic fatty liver disease (NAFLD) asks about supplements. Which has the most evidence for reducing liver fat?
Answer: Vitamin E (800 IU/day) in non-diabetic adults
The PIVENS trial showed vitamin E at 800 IU/day significantly reduced liver inflammation and fat in non-diabetic, non-cirrhotic NAFLD patients compared to placebo.