Nursing practice questions with comprehensive rationales
NurseDive Free Nursing Practice Question
A nurse is assisting with teaching a class about minerals. Which of the following minerals is needed for the transport of oxygen?
A. Iron
Iron is a crucial component of hemoglobin in red blood cells, responsible for carrying oxygen throughout the body.
B. Magnesium
Magnesium is involved in various enzymatic reactions, nerve function, and muscle contractions, but it's not directly involved in oxygen transport.
C. Potassium
Potassium plays a role in maintaining electrolyte balance and cell function, not in oxygen transport.
D. Phosphorus
Phosphorus is essential for bone health, energy metabolism, and cell membrane formation but is not directly involved in oxygen transport.
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Full Explanation
A. Iron is a crucial component of hemoglobin in red blood cells, responsible for carrying oxygen throughout the body.
B. Magnesium is involved in various enzymatic reactions, nerve function, and muscle contractions, but it's not directly involved in oxygen transport.
C. Potassium plays a role in maintaining electrolyte balance and cell function, not in oxygen transport.
D. Phosphorus is essential for bone health, energy metabolism, and cell membrane formation but is not directly involved in oxygen transport.
Similar Questions
A nurse is assisting with teaching a client about nutritional supplements. Which of the following supplements is used to reduce the risk of birth defects in neonates?
A. Vitamin D
Vitamin D is crucial for bone health and immune function but is not primarily used to reduce the risk of birth defects.
B. Omega-3 fatty acids
Omega-3 fatty acids are important for various aspects of health but are not specifically recognized for reducing the risk of birth defects.
C. Lutein
Lutein is an antioxidant that supports eye health but is not primarily used to reduce the risk of birth defects.
D. Folic acid
Folic acid, a B vitamin, is crucial in preventing neural tube defects in newborns when taken by pregnant women before and during pregnancy.
Full Explanation
A. Vitamin D is crucial for bone health and immune function but is not primarily used to reduce the risk of birth defects.
B. Omega-3 fatty acids are important for various aspects of health but are not specifically recognized for reducing the risk of birth defects.
C. Lutein is an antioxidant that supports eye health but is not primarily used to reduce the risk of birth defects.
D. Folic acid, a B vitamin, is crucial in preventing neural tube defects in newborns when taken by pregnant women before and during pregnancy.
The nurse is aware that vitamin B12 is absorbed in the:
A. Duodenum
The duodenum is the first part of the small intestine where a significant amount of digestion takes place, but vitamin B12 is primarily absorbed in the lower part of the small intestine, called the ileum.
B. Stomach
The stomach plays a role in releasing intrinsic factor, which helps in the absorption of vitamin B12, but the actual absorption occurs in the small intestine.
C. Small intestine
Vitamin B12 absorption primarily occurs in the lower part of the small intestine (ileum), facilitated by intrinsic factors.
D. Large intestine
The large intestine primarily absorbs water and electrolytes; it is not a site for vitamin B12 absorption.
Full Explanation
A. The duodenum is the first part of the small intestine where a significant amount of digestion takes place, but vitamin B12 is primarily absorbed in the lower part of the small intestine, called the ileum.
B. The stomach plays a role in releasing intrinsic factor, which helps in the absorption of vitamin B12, but the actual absorption occurs in the small intestine.
C. Vitamin B12 absorption primarily occurs in the lower part of the small intestine (ileum), facilitated by intrinsic factors.
D. The large intestine primarily absorbs water and electrolytes; it is not a site for vitamin B12 absorption.
A nurse is collecting data from a client who has an inadequate dietary intake of fiber. Which of the following findings should the nurse expect?
A. Brittle hair
Brittle hair is more associated with protein deficiencies or inadequate hydration rather than insufficient fiber intake.
B. Bleeding gums
Bleeding gums can be related to vitamin deficiencies (like vitamin C), poor oral hygiene, or gum disease but not primarily to inadequate fiber intake.
C. Constipation
Constipation is a common consequence of inadequate fiber intake, as fiber helps add bulk to stools, promoting regular bowel movements.
D. Memory loss
Memory loss is not typically a direct result of insufficient fiber intake; it may be associated with various neurological or age-related conditions.
Full Explanation
A. Brittle hair is more associated with protein deficiencies or inadequate hydration rather than insufficient fiber intake.
B. Bleeding gums can be related to vitamin deficiencies (like vitamin C), poor oral hygiene, or gum disease but not primarily to inadequate fiber intake.
C. Constipation is a common consequence of inadequate fiber intake, as fiber helps add bulk to stools, promoting regular bowel movements.
D. Memory loss is not typically a direct result of insufficient fiber intake; it may be associated with various neurological or age-related conditions.