Magnetic Resonance Imaging (MRI)

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Study Tools For Magnetic Resonance Imaging (MRI)

Magnetic Resonance Imaging (MRI) (Picmonic)
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Outline

Overview

  1. Magnetic resonance imaging (MRI)
    1. Detailed pictures of organs and tissues
    2. No metal in room

Nursing Points

General

  1. Magnetic and radio waves
  2. Magnetic field -> Realigns hydrogen atoms in body
  3. Radio waves -> cause them to make signals used for the pictures
  4. High resolution
  5. Purpose
    1. Clearer look for diagnosis
      1. Organs
      2. Vessels
      3. Bones
      4. Tissues

Assessment

  1. Before MRI
    1. Explain scan and purpose
    2. Fill out MRI form with patient assistance
      1. Ask if claustrophobic -> may need medication to relax
      2. Any history of metal in body
      3. Have patient sign
    3. If contrast -> patient sign consent on form
    4. Fax form to MRI
    5. Disconnect IV lines

Therapeutic Management

  1. During MRI
    1. Position patient
    2. Ask to stay still during the scan
    3. Remove all metal from room (wheelchairs, bed)
  2. After MRI
    1. Transfer patient (bed, wheelchair)
    2. Check IV patency (flush) and reconnect any IV lines
    3. Radiologist will interpret results
    4. Doctor will discuss results with patient

Nursing Concepts

  1. Safety
    1. Metal in room or on patient must be removed to avoid injury (magnetic field)
  2. Patient Education
    1. No metal!
    2. Resume metformin 48 hours after contrast
  3. Patient-Centered Care
    1. Claustrophobic – may need medication to relax

Patient Education

  1. No metal in MRI
  2. If contrast, hold metformin for 48 hours

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Transcript

Hey guys! Welcome to the lesson about magnetic resonance imaging or MRI. 

So the MRI creates detailed high resolution pictures, much more detailed than the X-ray or CT scan. It does this by using a magnetic field to realign the hydrogen atoms in the body, and radio waves to cause them to make signals used for the pictures. Why would we need an MRI?

MRIs are perfect for getting a clearer look into the body for a proper diagnosis. Organs may be viewed like the brain and spinal cord for a clear neurological assessment. Vessels may be viewed even more clearly with contrast injection to light them up during the scan. MRIs can diagnose disease and infection in the bone like osteomyelitis in this picture. Infection and abscesses are visualized as well to help make decisions on patient treatment. 

So when the doctor orders an MRI for your patient, you will notify the patient of the test and why they are having it done. For example, if the patient has severe cellulitis in the abdomen and the doctor wants to make sure there isn’t an abscess forming. Your facility will have an MRI form that needs filled out by asking the patient questions related to metal exposure or placement in the body. A patient signature will be provided on the form as a consent that the information is right and they are willing to have the test.  Ask the patient if they’re claustrophobic because they may need medication to help them to relax as the MRI can take a while and is in a tight space. If the doctor orders an MRI with contrast, the patient will have to sign a consent because it is invasive. Fax the form to MRI so that the radiology tech may review and make sure there aren’t any contraindications. If there aren’t any, you will disconnect any IV lines before taking the patient to the scan. No metal may be brought into the MRI room. 

When you get to the radiology room, you will position the patient on the MRI board here according to the body part being viewed. Ask the patient to stay still during the scan so that a clear picture may be taken. Remember to remove all metal from the room because the scan uses magnetic forces that may cause shifting of metal resulting in damage. 

After the MRI scan is over, transfer the patient back from radiology. Check the IV for patency with a saline flush before reconnecting the lines. The radiology will interpret the scan for results and the doctor will explain the results to the patient. Let’s touch on patient education.

It’s super important that you emphasize the importance of no metal during the MRI, including jewelry and piercings. If the patient had contrast during the test, let them know they need to hold metformin for 48 hours after to protect kidney function. 

The priority nursing concepts for the patient getting an MRI are safety, patient education, and patient-centered care. 

Alright, now let’s review the key points. Magnetic resonance imaging or MRIs are high resolution scans that use magnetic and radio waves. The doctor may order an MRI to help diagnose disease in the tissues, bones, organs, or vessels. Before the scan, you will fill out an MRI form with the patient with questions about metal, have the patient sign, and then fax to radiology to make sure there aren’t contraindications for the test. Make sure you remove all metal from the patient and disconnect the IV lines. During the MRI you will position the patient according to the body part being scanned. Ask the patient not to move and remove all metal from the room. After the scan, the radiologist will interpret the scan and the doctor will explain the results. Let the patient know to hold the metformin for 48 hours after the scan if contrast was used to protect kidney function. 

Alright guys, that’s it on MRIs! No go out and be your best self today, and as always, happy nursing!




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My Study Plan (MED-SURG for NCLEX)

Concepts Covered:

  • Respiratory Disorders
  • EENT Disorders
  • Prenatal Concepts
  • Acute & Chronic Renal Disorders
  • Disorders of the Adrenal Gland
  • Integumentary Disorders
  • Oncology Disorders
  • Preoperative Nursing
  • Musculoskeletal Trauma
  • Disorders of the Posterior Pituitary Gland
  • Hematologic Disorders
  • Renal Disorders
  • Labor Complications
  • Immunological Disorders
  • Upper GI Disorders
  • Neurological Emergencies
  • Disorders of Pancreas
  • Musculoskeletal Disorders
  • Cardiac Disorders
  • Disorders of the Thyroid & Parathyroid Glands
  • Integumentary Important Points
  • Pregnancy Risks
  • Noninfectious Respiratory Disorder
  • Urinary Disorders
  • Vascular Disorders
  • Eating Disorders
  • Lower GI Disorders
  • Intraoperative Nursing
  • Neurologic and Cognitive Disorders
  • Central Nervous System Disorders – Brain
  • Circulatory System
  • Postoperative Nursing
  • Liver & Gallbladder Disorders
  • Central Nervous System Disorders – Spinal Cord
  • Emergency Care of the Cardiac Patient
  • Peripheral Nervous System Disorders
  • Substance Abuse Disorders
  • Female Reproductive Disorders
  • Postpartum Complications
  • Fetal Development
  • Shock
  • Emergency Care of the Neurological Patient
  • Labor and Delivery
  • Postpartum Care
  • Newborn Care
  • Newborn Complications

Study Plan Lessons

ABGs Nursing Normal Lab Values
Glaucoma
Menstrual Cycle
X-Ray (Xray)
ABG (Arterial Blood Gas) Interpretation-The Basics
Nursing Care and Pathophysiology of Acute Kidney (Renal) Injury (AKI)
Addisons Disease
Burn Injuries
Cataracts
Computed Tomography (CT)
Family Planning & Contraception
Informed Consent
Nursing Care and Pathophysiology for Cushings Syndrome
Macular Degeneration
Magnetic Resonance Imaging (MRI)
Preoperative (Preop)Assessment
Pressure Ulcers/Pressure injuries (Braden scale)
Nursing Care and Pathophysiology for Diabetes Insipidus (DI)
Nursing Care and Pathophysiology for Disseminated Intravascular Coagulation (DIC)
Nursing Care and Pathophysiology of Glomerulonephritis
Nursing Care and Pathophysiology for Herpes Zoster – Shingles
Isotonic Solutions (IV solutions)
Nursing Care and Pathophysiology of Osteoarthritis (OA)
Nursing Care and Pathophysiology for Pancreatitis
Preoperative (Preop) Education
Cerebral Angiography
Hearing Loss
Hypotonic Solutions (IV solutions)
Nursing Care and Pathophysiology of Osteoporosis
Nursing Care and Pathophysiology for Peptic Ulcer Disease (PUD)
Preoperative (Preop) Nursing Priorities
Respiratory Acidosis (interpretation and nursing interventions)
Thrombocytopenia
Blood Transfusions (Administration)
Cardiovascular Angiography
Fractures
Nursing Care and Pathophysiology for Hyperthyroidism
Hypertonic Solutions (IV solutions)
Integumentary (Skin) Important Points
Preload and Afterload
Respiratory Alkalosis
Nursing Care and Pathophysiology of Urinary Tract Infection (UTI)
Echocardiogram (Cardiac Echo)
Nursing Care and Pathophysiology for Hypothyroidism
Metabolic Acidosis (interpretation and nursing diagnosis)
Performing Cardiac (Heart) Monitoring
Metabolic Alkalosis
Ultrasound
Base Excess & Deficit
Biopsy
Gestation & Nägele’s Rule: Estimating Due Dates
Potassium-K (Hyperkalemia, Hypokalemia)
Nursing Care and Pathophysiology of Angina
Nursing Care and Pathophysiology for Appendicitis
Nursing Care and Pathophysiology of Chronic Kidney (Renal) Disease (CKD)
Nursing Care and Pathophysiology of Diabetes Mellitus (DM)
General Anesthesia
Gravidity and Parity (G&Ps, GTPAL)
Leukemia
Levels of Consciousness (LOC)
Sodium-Na (Hypernatremia, Hyponatremia)
Diabetes Management
Dialysis & Other Renal Points
Local Anesthesia
Lymphoma
Nursing Care and Pathophysiology of Myocardial Infarction (MI)
Routine Neuro Assessments
Adjunct Neuro Assessments
Chloride-Cl (Hyperchloremia, Hypochloremia)
Nursing Care and Pathophysiology of Diabetic Ketoacidosis (DKA)
Fundal Height Assessment for Nurses
Moderate Sedation
Oncology Important Points
Nursing Care and Pathophysiology of Coronary Artery Disease (CAD)
Hyperglycaemic Hyperosmolar Non-ketotic syndrome (HHNS)
Nursing Care and Pathophysiology for Inflammatory Bowel Disease (IBD)
Malignant Hyperthermia
Maternal Risk Factors
Intracranial Pressure ICP
Nursing Care and Pathophysiology for Ulcerative Colitis(UC)
Cerebral Perfusion Pressure CPP
Nursing Care and Pathophysiology for Crohn’s Disease
Normal Sinus Rhythm
Physiological Changes
Post-Anesthesia Recovery
Red Blood Cell (RBC) Lab Values
Nursing Care and Pathophysiology for Acquired Immune Deficiency Syndrome (AIDS)
Nursing Care and Pathophysiology for Cholecystitis
Discomforts of Pregnancy
Nursing Care and Pathophysiology for Heart Failure (CHF)
Hemoglobin (Hbg) Lab Values
Nursing Care and Pathophysiology for Multiple Sclerosis (MS)
Postoperative (Postop) Complications
Sinus Bradycardia
Nursing Care and Pathophysiology for Anaphylaxis
Antepartum Testing
Hematocrit (Hct) Lab Values
Nursing Care and Pathophysiology for Hepatitis (Liver Disease)
Sinus Tachycardia
Nursing Care and Pathophysiology for Cirrhosis (Liver Disease, Hepatic encephalopathy, Portal Hypertension, Esophageal Varices)
Discharge (DC) Teaching After Surgery
Nutrition in Pregnancy
Pacemakers
White Blood Cell (WBC) Lab Values
Atrial Fibrillation (A Fib)
Platelets (PLT) Lab Values
Coagulation Studies (PT, PTT, INR)
Miscellaneous Nerve Disorders
Premature Ventricular Contraction (PVC)
Ventricular Tachycardia (V-tach)
Ventricular Fibrillation (V Fib)
Albumin Lab Values
Nursing Care and Pathophysiology for Pelvic Inflammatory Disease (PID)
Cholesterol (Chol) Lab Values
Nursing Care and Pathophysiology for Hemorrhagic Stroke (CVA)
Nursing Care and Pathophysiology of Hypertension (HTN)
Ammonia (NH3) Lab Values
Nursing Care and Pathophysiology for Endometriosis
Nursing Care and Pathophysiology for Ischemic Stroke (CVA)
Chorioamnionitis
Nursing Care and Pathophysiology for Menopause
Stroke Assessment (CVA)
Nursing Care and Pathophysiology for Cardiomyopathy
Gestational Diabetes (GDM)
Stroke Therapeutic Management (CVA)
Disseminated Intravascular Coagulation (DIC)
Stroke Nursing Care (CVA)
Ectopic Pregnancy
Nursing Care and Pathophysiology for Thrombophlebitis (clot)
Hydatidiform Mole (Molar pregnancy)
Gestational HTN (Hypertension)
Infections in Pregnancy
Preeclampsia: Signs, Symptoms, Nursing Care, and Magnesium Sulfate
Blood Urea Nitrogen (BUN) Lab Values
Creatinine (Cr) Lab Values
Fetal Development
Nursing Care and Pathophysiology for Hypovolemic Shock
Seizure Causes (Epilepsy, Generalized)
Nursing Care and Pathophysiology for Cardiogenic Shock
Fetal Environment
Seizure Assessment
Nursing Care and Pathophysiology for Distributive Shock
Fetal Circulation
Seizure Therapeutic Management
Urinalysis (UA)
Nursing Care and Pathophysiology for Seizure
Glucose Lab Values
Process of Labor
Hemoglobin A1c (HbA1C)
Mechanisms of Labor
Leopold Maneuvers
Fetal Heart Monitoring (FHM)
Nursing Care and Pathophysiology for Meningitis
Prolapsed Umbilical Cord
Placenta Previa
Abruptio Placentae (Placental abruption)
Preterm Labor
Precipitous Labor
Dystocia
Postpartum Physiological Maternal Changes
Postpartum Discomforts
Breastfeeding
Postpartum Hemorrhage (PPH)
Mastitis
Initial Care of the Newborn (APGAR)
Newborn Physical Exam
Body System Assessments
Newborn Reflexes
Babies by Term
Meconium Aspiration
Transient Tachypnea of Newborn
Hyperbilirubinemia (Jaundice)
Newborn of HIV+ Mother
Hemodynamics
Nursing Care and Pathophysiology for Parkinsons
Nursing Care and Pathophysiology for SIADH (Syndrome of Inappropriate antidiuretic Hormone Secretion)