NR-228 Nutrition, Health & Wellness - Set 3 - Part 2

Correct Answer: Report the symptoms and review all retinoid sources

Isotretinoin, a retinol capsule and frequent liver all deliver preformed vitamin A, and headache with blurred vision suggests raised intracranial pressure from hypervitaminosis A. Reporting and reviewing every source addresses the stacked exposure. Option a is incorrect because dismissing the complaint overlooks a recognized sign of acute vitamin A excess. Headache with blurred vision reflects rising intracranial pressure and warrants evaluation rather than reassurance. Option b is incorrect because moving the dose to bedtime changes nothing about the total retinol reaching the liver each day. The problem is cumulative quantity from three separate sources, not timing. Option c is incorrect because fluids do not clear a fat-soluble vitamin held in hepatic stores. Delaying a month allows continued intake well above the adult upper limit of three thousand micrograms.

Correct Answer: "Check with your provider before adding that supplement."

High-dose vitamin E inhibits platelet aggregation and interferes with vitamin K dependent clotting, so bleeding risk adds to warfarin's effect. Supplements are contraindicated with anticoagulants, and the provider must be consulted first. Option a is incorrect because vitamin E and vitamin K move in opposite directions with this drug. Vitamin K opposes warfarin, while vitamin E adds to it and raises the chance of hemorrhage. Option b is incorrect because this supplement pushes the client toward overanticoagulation rather than offering protection. Large trials linked high-dose vitamin E to hemorrhagic stroke, so promising benefit misleads the client dangerously. Option d is incorrect because the hazard comes from the combined antiplatelet and anticoagulant effect, not from when each dose is swallowed. Rescheduling the capsule leaves the additive bleeding risk fully in place.

Correct Answer: Take two smaller doses with meals daily

Fractional absorption is best at five hundred milligrams or less at a time, and calcium carbonate needs gastric acid to dissolve, so the dose should be split and taken with food. Option a is incorrect because a single large dose on an empty stomach fails twice over. Absorption efficiency falls as the dose rises, and carbonate salts will not dissolve without stomach acid. Option b is incorrect because chewing changes nothing about the two real problems here. The tablet still arrives in an acid free stomach, and the amount taken at once still exceeds what the gut can absorb. Option c is incorrect because coffee does not solve the dose size problem, and caffeine increases urinary calcium loss, so pairing the supplement with coffee works against the client's bone goal.

Correct Answer: Your blood level stays normal because bone is spent

Serum calcium is defended by parathyroid hormone, which resorbs bone to keep the blood level normal. A normal value therefore says nothing about calcium intake or skeletal health; bone density testing does. Option a is incorrect because it endorses the client's misreading. Chronic low calcium intake typically produces a normal serum value and a raised parathyroid hormone, paid for by continuous withdrawal from the skeleton. Option b is incorrect because the serum value does not track the disease. Hormonal regulation holds it steady even in advanced bone loss, so waiting for it to drop would be waiting forever. Option d is incorrect because renal reabsorption is only one of three routes parathyroid hormone uses. Naming the kidney alone hides the central problem, which is that the skeleton is being dismantled.

Correct Answer: "Daily vitamin D drops should start within the first few days."

The American Academy of Pediatrics directs that breastfed and partially breastfed infants receive four hundred international units of vitamin D daily, beginning in the first few days of life, because human milk is a poor source. Option b is incorrect because human milk is nearly complete but supplies very little vitamin D, well under the daily requirement. That single gap is why nutritional rickets still occurs in exclusively breastfed infants. Option c is incorrect because delaying until two months leaves the newborn without any vitamin D source during weeks of rapid skeletal growth. Supplementation is timed to the first days of life, not to a later visit. Option d is incorrect because maternal intake raises milk vitamin D only modestly and does not close the gap at ordinary doses. The recommendation supplements the infant directly rather than relying on the mother.

Correct Answer: Most of your sodium is already in the food you buy

More than seventy percent of dietary sodium is already present in packaged, prepared and restaurant foods. Removing the shaker addresses less than a fifth of what the client actually consumes. Option a is incorrect because it confirms a belief the client's own intake record disproves. Praising the shaker change without addressing packaged and restaurant food leaves the diet order unmet. Option c is incorrect because salt used in home cooking is a small contributor compared with commercially processed food. Steering the client toward the saucepan misses the grocery cart entirely. Option d is incorrect because it reverses the actual proportions. Discretionary salt added at the table is the smallest slice of daily sodium, which is exactly why this client's intake stayed high.

Correct Answer: Increases intestinal absorption of calcium and phosphorus

The active hormone calcitriol defends serum calcium mainly by inducing calcium-binding proteins that increase intestinal absorption of calcium and phosphorus. Adequate mineral in blood allows hydroxyapatite to be laid into bone matrix. Option b is incorrect because carboxylation of factors two, seven, nine and ten is the work of vitamin K acting as a cofactor. That pathway governs clotting, not calcium movement into bone. Option c is incorrect because shielding membrane polyunsaturated fats from free radical attack describes vitamin E, the chain-breaking antioxidant. Bone mineralization lies entirely outside what that vitamin contributes. Option d is incorrect because retinal joining opsin to build rhodopsin is the vision role of vitamin A in the rod photoreceptors. Night vision, not skeletal mineral, depends on that reaction.

Correct Answer: About three and seven tenths liters

The adequate intake for total water is three and seven tenths liters a day for men, counting beverages and food. About three liters of that, near thirteen cups, comes from beverages. Option a is incorrect because two and seven tenths liters is the total water figure set for adult women. Men are assigned the larger total, so this amount understates his requirement. Option c is incorrect because eight eight-ounce glasses works out to that volume and was never a dietary reference intake. It falls below the beverage portion alone for either sex. Option d is incorrect because that volume names the beverage share recommended for women, roughly nine cups. It is neither a total water figure nor a value that applies to men.

Correct Answer: Beta-carotene is the precursor of the active form retinol

Plants supply provitamin A carotenoids, chiefly beta-carotene, which the body cleaves to retinol, the active form. Conversion is inefficient, so twelve micrograms of dietary beta-carotene equal one microgram of retinol activity. Option a is incorrect because the direction is reversed. Retinol is the end product the body uses, and humans do not manufacture carotene from it, since carotenoids come only from plant foods. Option b is incorrect because absorption differs sharply between the two. Roughly three quarters or more of retinol is taken up, compared with only about a tenth to a third of food carotene. Option c is incorrect because retinyl esters are the storage and supplement form found in animal tissue, not in vegetables. A carrot delivers pigment that must first be converted before the liver can store it.

Correct Answer: Niacin, vitamin B3

The three Ds of pellagra are dermatitis on sun exposed skin, diarrhea and dementia. Maize niacin is poorly available and maize protein is low in tryptophan, and alcohol further blocks the tryptophan conversion. Option a is incorrect because thiamin deficiency strikes the heart and the nerves. It produces edema and high output failure in the wet form and a symmetric peripheral neuropathy with wasting in the dry form. Option b is incorrect because pyridoxine shortage typically gives a microcytic anemia with seizures, cheilosis and neuropathy. It can impair tryptophan conversion, yet the corn based diet points directly at niacin itself. Option d is incorrect because biotin shortage shows as thinning hair, brittle nails and a scaly red rash around the eyes, nose and mouth. Its usual causes are raw egg white, antibiotics or parenteral nutrition.

Correct Answer: Foamy white plaques on the conjunctiva

Night blindness is the first sign of vitamin A deficiency, and continued loss of goblet cells keratinizes the conjunctiva. Bitot's spots, foamy whitish plaques of desquamated cells, are the next visible eye finding. Option b is incorrect because bowed legs arise from undermineralized bone at open growth plates, which is rickets and belongs to vitamin D deficiency. Poor night vision plays no part in that skeletal picture. Option c is incorrect because swollen bleeding gums and loosening teeth describe scurvy, caused by inadequate vitamin C and defective collagen in gum tissue. Vitamin A deficiency dries epithelium rather than weakening connective tissue. Option d is incorrect because peripheral numbness and tingling point to vitamin E deficiency or a B vitamin problem affecting nerve membranes. Sensory neuropathy is not part of the vitamin A deficiency spectrum.

Correct Answer: Vitamin E deficiency from membrane peroxidation

Premature infants have low vitamin E stores and red cell membranes rich in polyunsaturated fat. Without the chain-breaking antioxidant those membranes peroxidize and the cells lyse, producing hemolytic anemia with normal coagulation studies. Option a is incorrect because vitamin A deficiency presents first as night blindness and progresses through xerophthalmia to corneal damage. It attacks epithelium and the rod photoreceptors, and it does not lyse red cells. Option b is incorrect because inadequate vitamin D impairs calcium and phosphorus absorption, producing undermineralized bone and eventually rickets. Its findings are skeletal, and it has no effect on red blood cell membrane stability. Option d is incorrect because prophylaxis was given and the clotting studies are normal, which rules out a carboxylation defect. Deficiency of this vitamin causes bleeding with a prolonged ratio, not destruction of erythrocytes.

Correct Answer: A half cup of dried apricots

Dried apricots supply about seven hundred fifty five milligrams of potassium in a half cup, well above the four hundred twenty two milligrams in a medium banana. Apples, berries and lettuce are low potassium foods. Option a is incorrect because berries sit on the list of lower potassium fruits recommended when intake must be restricted. Choosing them would move this client away from the goal, not toward it. Option b is incorrect because apples are among the fruits substituted for bananas and oranges when potassium is being limited. An apple supplies less potassium than the banana she already eats. Option c is incorrect because lettuce is specifically named as a low potassium vegetable for clients who must restrict the mineral. Salad greens of that type add volume rather than potassium.

Correct Answer: "It forms coenzyme A for energy metabolism."

Pantothenic acid is the backbone of coenzyme A, the universal carrier of acetyl and acyl groups. Through coenzyme A it sits at the hub of carbohydrate, fat and protein metabolism and of fatty acid oxidation. Option a is incorrect because oxygen transport inside the red cell is the work of hemoglobin, which depends on iron. No B vitamin binds oxygen, and vitamins supply no energy of their own. Option c is incorrect because heme is an iron containing porphyrin, and iron occupies its center. Building heme depends on vitamin B6 as pyridoxal phosphate, not on pantothenic acid at any step. Option d is incorrect because fat absorption depends on bile and micelle formation rather than on a water soluble vitamin. Pantothenic acid acts after absorption, inside cells, where coenzyme A moves acyl groups between pathways.

Correct Answer: "How many nuts do you eat each day?"

Garlic breath, metallic taste, hair loss and brittle nails are the signs of selenosis. Brazil nuts carry roughly five hundred forty-four micrograms per ounce, so quantifying the daily number establishes the exposure. Option a is incorrect because seafood avoidance would point toward iodine, and this client's findings are not thyroid findings. The garlic odor is specific enough to send the assessment toward selenium. Option b is incorrect because fluid intake has no bearing on hair loss with a garlic odor. The history already names a food that supplies an entire day's selenium in one nut. Option d is incorrect because salt iodization concerns goiter and hypothyroidism, neither of which is described here. Asking about it delays the question that identifies how much selenium is being consumed.

Correct Answer: Both labels still require reading the Nutrition Facts panel

No salt added means none was added during processing, and reduced sodium means only a quarter less than the original. Neither claim makes a food low in sodium, so the panel must be read. Option b is incorrect because low sodium is a defined claim meaning one hundred forty milligrams or less per serving. Neither of these products has made that claim on its label. Option c is incorrect because reduced sodium soy sauce remains a high sodium food; a quarter off a very large number is still a large number. The tomato sauce carries no quantitative promise at all. Option d is incorrect because neither purchase is automatically acceptable. The client has bought on the strength of front of package wording without verifying the milligrams of sodium in a serving.

Correct Answer: Request a serum cobalamin level

Long term metformin interferes with calcium dependent cobalamin uptake in the ileum, and the resulting neuropathy looks exactly like diabetic neuropathy. Measuring the cobalamin level identifies a reversible cause before the nerve damage becomes permanent. Option a is incorrect because assuming diabetic neuropathy without checking cobalamin is the trap this drug sets. Foot care teaching remains useful, yet it does nothing to correct a vitamin deficiency that is still progressing. Option c is incorrect because folate does not repair myelin. Adding folic acid to an unrecognized cobalamin deficiency can correct a blood count while demyelination of the spinal cord quietly continues to worsen. Option d is incorrect because gait training addresses the consequence and leaves the cause untouched. Unsteadiness here signals possible dorsal column involvement, which calls for laboratory evaluation and vitamin replacement rather than exercise alone.

Correct Answer: "I will keep my greens about the same each week."

Warfarin doses are titrated against habitual vitamin K intake, so steady consumption of green vegetables keeps the international normalized ratio stable. Consistency from week to week, not avoidance, is the teaching point. Option a is incorrect because eliminating greens abruptly acts like a warfarin dose increase and pushes the ratio upward toward bleeding. It also strips folate, fiber and potassium from the diet for no benefit. Option b is incorrect because self-adjusting food intake in response to a laboratory value replaces the prescriber's dose titration and destabilizes anticoagulation. Laboratory results are managed by changing the warfarin dose, not the menu. Option c is incorrect because adding a vitamin K supplement introduces a large new source that opposes warfarin and lowers the ratio, risking clot formation. Any supplement must be discussed with the provider first.

Correct Answer: Fortified nutritional yeast and cereal

Vitamin B12 occurs naturally only in animal foods, so a strict vegan must rely on fortified products or a supplement. Fortified nutritional yeast and fortified breakfast cereals supply the vitamin in an absorbable form. Option a is incorrect because spinach and kidney beans contain no vitamin B12 at all. They are worthwhile sources of folate, iron and vitamin K, but plant foods carry none of this vitamin. Option c is incorrect because whole wheat bread and bananas supply no cobalamin. Enriched grain products are fortified with folic acid, thiamin, riboflavin, niacin and iron, but B12 is not part of standard enrichment. Option d is incorrect because strawberries and almonds carry no cobalamin. Strawberries supply vitamin C and nuts belong on the vitamin E list, so neither food closes the gap a vegan diet creates.

Correct Answer: Peripheral neuropathy of hands and feet

Isoniazid metabolites inactivate vitamin B6, and the resulting shortage of pyridoxal phosphate damages peripheral nerves. Twenty five to fifty milligrams of pyridoxine daily prevents the numbness, tingling and burning that would otherwise develop. Option b is incorrect because gum bleeding and loose teeth come from scurvy, a collapse of vitamin C dependent collagen. Isoniazid has no effect on ascorbic acid status or on connective tissue. Option c is incorrect because megaloblastic anemia arises from folate or cobalamin shortage. Pyridoxine deficiency instead impairs heme synthesis through delta aminolevulinic acid synthase, which yields a small pale microcytic red cell. Option d is incorrect because facial flushing is the signature effect of high dose nicotinic acid, not of isoniazid. It reflects prostaglandin driven vasodilation and has nothing to do with vitamin B6.