Which nutritional deficiencies should the plan of care address to improve oxygen delivery and wound healing in the patient with a pressure ulcer?
A) Copper deficiency
B) Iron deficiency
C) Magnesium deficiency
D) Zinc deficiency
B) Iron deficiency
Explanation: A) Copper is required for protein synthesis and cellular proliferation for normal wound healing. These minerals are critical in collagen synthesis and cross-linking, and deficiencies impair wound tensile strength and stability.
B) Iron is required for oxygen transport in the hemoglobin molecule, and severe deficiencies can impair oxygen delivery to cells and tissues and result in wound hypoxia.
C) Magnesium is required for protein synthesis and cellular proliferation for normal wound healing, as well as strength and stability of the healing.
D) Zinc is required for facilitating optimal wound healing and fibroblast proliferation and collagen synthesis as well as epidermal cell proliferation to prevent decreased wound strength and stability and a delay in reepithelialization.
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Within a research hypothesis, the nurse is identifying the independent variable. An independent variable is best defined as:
a. the outcome variable of interest. b. an abstraction or mental representation inferred from situations, events, or behaviors. c. constructs that are knitted together in an orderly system to explain the way people function. d. the variable that is believed to cause or influence the dependent variable.
Providing subjects with an estimate of the potential risks in relation to the potential benefits is called the:
A. right to privacy and dignity. B. right to anonymity and confidentiality. C. risk-benefit ratio. D. right to self-determination.
The nurse is reviewing the laboratory test results of a pregnant client. Which one of the following findings would alert the nurse to the development of HELLP syndrome?
A) Hyperglycemia B) Elevated platelet count C) Leukocytosis D) Elevated liver enzymes
Which of the following locations does cytomegalovirus (CMV) occupy?
A. Skin and lungs B. Pharynx and eyes C. Nasal cavity and pharynx D. Eyes and liver