The mineral that has been determined to be essential for cardiac function is:
1. iron.
2. fluoride.
3. zinc.
4. magnesium.
4
Magnesium is a mineral that has been determined to be especially important in cardiac function. Even slight deficiencies may prolong the QT interval and lead to a very dangerous form of ven-tricular tachycardia called torsades de pointes.
You might also like to view...
Which scenarios contribute to effective handoff communication at change of shift? (Select all that apply.)
a. The nephrology consultant physician is making rounds and asks you to update her on the patient's status and assist in placing a central line for hemodialysis. b. The noise level is high because twice as many staff members are present and everyone is giving report in the nurse's station. c. The unit has decided to use a standardized checklist/tool for change-of-shift reports and patient transfers. d. You and the oncoming nurse conduct a standardized report at the patient's bedside and review key assessment findings.
During a home visit an older patient with heart disease tells the nurse of plans to shovel the snow as soon as the visit concludes. How should the nurse instruct the patient at this time?
1. Shovel the steps only. 2. Avoid shoveling at this time. 3. Shovel for 30 minutes at a time. 4. Shovel for 10 minutes and then stop.
Bearing in mind the function of the blood–brain barrier, dangers associated with administering large doses of water-soluble drugs relate primarily to the
a. rapid development of tolerance. b. high risk of adverse systemic effects. c. liver's inability to metabolize water-soluble drugs. d. rapid passage into the brain increasing the risk of overdose.
The complex care provided during an emergency requires interdisciplinary collaboration. Which interdisciplinary team members are paired with the correct responsibilities? (Select all that apply.)
a. Psychiatric crisis nurse - Interacts with clients and families when sudden illness, serious injury, or death of a loved one may cause a crisis b. Forensic nurse examiner - Performs rapid assessments to ensure clients with the highest acuity receive the quickest evaluation, treatment, and prioritization of resources c. Triage nurse - Provides basic life support interventions such as oxygen, basic wound care, splinting, spinal immobilization, and monitoring of vital signs d. Emergency medical technician - Obtains client histories, collects evidence, and offers counseling and follow-up care for victims of rape, child abuse, and domestic violence e. Paramedic - Provides prehospital advanced life support, including cardiac monitoring, advanced airway management, and medication administration