TNCC Notes for Written Exam Practice, Exams of Nursing

Download TNCC Notes for Written Exam Practice and more Exams Nursing in PDF only on Docsity! TNCC NOTES FOR WRITTEN EXAM PRACTICE QUESTION AND ANSWERS LATEST VERSION 2024 VERIFIED RATIONALE GRADED A+ Define central or transtentorial herniation. - ansA downward movement of the cerebral hemispheres with herniation of the diencephalon and midbrain through the elongated gap of the tentorium. Define Hemothorax. - ansAccumulation of blood in the pleural space. Define Minor Head Trauma. - ansGCS 13-15 Define Moderate Head Trauma - ansPostresuscitative state with GCS 9-13. Define Pneumothorax. - ansResults when an injury to lung leads to accumulation of air in pleural space w/subsequent loss of negative intrapleural pressure. Partial or total collapse of lung may ensue. An open pneumothorax results from wound through chest wall. Air enters pleural space both through the wound and trachea. Define Severe Head Trauma. - ansPostresuscitative state with GCS score of 8 or less. Define tension pneumothorax. - ansLife-threatening injury. Air enters pleural space on inspiration, but air cannot escape on expiration. Rising intrathoracic pressure collapses lung on side of injury causing a mediastinal shift that compresses the heart, great vessels, trachea and uninjured lung. Venous return impeded, cardiac output falls, hypotension results. Immediate decompression should be performed. Treatment should not be delayed. Define uncal herniation. - ansThe uncus (medial aspect of the temporal lobe) is displaced over the tentorium into the posterior fossa. This herniation is the more common of the two types of herniation syndromes. TNCC NOTES FOR WRITTEN EXAM PRACTICE QUESTION AND ANSWERS LATEST VERSION 2024 VERIFIED RATIONALE GRADED A+ Disruptions of the bony structures of the skull can result in what? - ansDisplaced or nondisplaced fx's causing CSF leakage b/c of lac to the dura mater, creating a passage for CSF. CSF leaks through the nose (rhinorrhea) or the ears (otorrhea). A potential entrance for invading bacteria. Also: meningitis or encephalitis or brain abscess Explain adrenal gland response. - ansWhen adrenal glands are stimulated by SNS, release of catecholamines (epinephrine and norepinephrine) from adrenal medulla will increase. Epi stimulates receptors in heart to increase force of cardiac contraction (positive inotropy) and increase HR (positive chronotropy) to improve cardiac output, BP and tissue perfusion. Shock stimulates hypothalamus to release corticotropin-releasing hormone that stimulates pituitary to release ACTH that stimulates adrenal gland to release cortisol. Effect of cortisol release is elevation in blood sugar and increased insulin resistance and gluconeogenesis, hepatic process to produce more sugar. Cortisol also causes renal retention of water and sodium, a compensatory mechanism to conserve body water. Explain Cardiogenic Shock. - ansSyndrome that results from ineffective perfusion caused by ineffective perfusion caused by inadequate contractility of cardiac muscle. Some causes: - MI - Blunt cardiac injury - Mitral valve insufficiency TNCC NOTES FOR WRITTEN EXAM PRACTICE QUESTION AND ANSWERS LATEST VERSION 2024 VERIFIED RATIONALE GRADED A+ V = Verbal P = Pain U = Unresponsive - GCS - PERRL? - Determine presence of lateralizing signs including: - Unilateral deterioration in motor movements or unequal pupils - Symptoms that help to locate area of injury in brain How do you confirm ET Tube/Alternative Airway Placement? - ans- Visualization of the chords - Using bronchoscope to confirm placement - Listening to breath sounds over the epigastrum and chest walls while ventilating the pt - CO2 detector - Esophageal detection device - Chest x-ray How do you inspect the chest for adequate ventilation? - ansObserve: - mental status - RR and pattern - chest wall symmetry - any injuries - patient's skin color (cyanosis?) - JVD or tracheal deviation? (Tension pneumothorax) How would you assess a patient with ocular, maxillofacial and neck trauma? - ans(Initial assessment) HISTORY TNCC NOTES FOR WRITTEN EXAM PRACTICE QUESTION AND ANSWERS LATEST VERSION 2024 VERIFIED RATIONALE GRADED A+ - MOI? - Acceleration/Deceleration? - What was it caused by? - Pt restrained? Airbags deployed? Etc. - What are the pt's complaints? - Pt normally wear glasses or contacts? - Pt have hx of eye problems? - Pt ever have eye surgery? - Pt have visual or ocular changes associated with chronic illness? PHYSICAL INSPECTION: - Inspect eye, orbits, face and neck - Check for symmetry, edema, ecchymosis, ptosis, lacerations and hematomas - Inspect globe for lacerations, large corneal abrasions, hyphema, and extrusion or prolapse of intraocular contents - Determine whether lid lac's - Assess pupil's (PERRL) - Unilateral fixed and dilated pupil may indicate oculomotor nerve compression as a result of ICP + herniation syndrome - Bilateral fixed and pinpoint pupils = pontine lesion or drugs - Mildly dilated pupil w/sluggish response may early sign of herniation syndrome - Widely dilated pupil occasionally occurs w/direct trauma to globe of eye - Assess for consensual response - Assess redness, eye watering, blepharospasm - Assess extraocular movement, except when an open globe injury is known or suspected. - Limitation range of ocular motion may indicate orbital rim fx w/entrapment or paralysis of cranial nerve or ocular muscle TNCC NOTES FOR WRITTEN EXAM PRACTICE QUESTION AND ANSWERS LATEST VERSION 2024 VERIFIED RATIONALE GRADED A+ - Perform visual acuity exam - Use Snellen or handheld chart. Check uninjured eye first - Assess for blurred or double vision with injured eye and then with both eyes open - Inspect for rhinorrhea or otorrhea - If drng present, may indicate CSF leak - Observe for impaled objects - Assess occlusion of mandible and maxilla - Malocclusion or inability to open + close mouth is highly indicative of maxillary or mandibular fx - Observe for uncontrolled bleeding PALPATION - Palpate periorbital area, face and neck for: - Tenderness - Edema - Step-off de How would you assess a pt with a cranial injury? - ans(Initial assessment) INSPECTION: - Assess airway - RR, pattern and effort - Assess pupil size and response to light - Unilateral fixed and dilated pupil = oculomotor nerve compression from increased ICP + herniation syndrome - Bilateral fixed and pinpoint pupils indicate a pontine lesion or effects of opiates - Mildly dilated pupil w/sluggish response may be early sign of herniation syndrome - Widely dilated pupil occasionally occurs w/direct trauma to globe of eye - Determine if pt uses eye meds TNCC NOTES FOR WRITTEN EXAM PRACTICE QUESTION AND ANSWERS LATEST VERSION 2024 VERIFIED RATIONALE GRADED A+ - Palpate central and peripheral pulses and compare quality between: - Right and left extremities - Upper and lower extremities - Palpate the trachea (above suprasternal notch. Trach shift may indicate late sign of tension pneumothorax or massive hemothorax) - Palpate extremities for motor and sensory function (lower extremitiy paresis or paralysis may indicate aortic injury). Auscultation: - Auscultate compare BP in both UE's and LE's - Auscultate breath sounds (decreased or absent breath = pneumo or hemothorax. Diminshed BS = splinting. Shallow = b/c of pain). - Auscultate chest for presence of BS (diaphragmatic rupture) - Auscultate Heart sounds (muffled = pericardial tamponade) - Auscultate neck vessels for bruits (vascular injury) Diagnostic Procedures: - Xrays - Arteriography - Bronchoscopy and laryngoscopy - CT's - FAST - Labs (cardiac enzymes) - ECG, CVP How would you assess someone in hypovolemic shock? - ans(Use Initial Assessment) and then: Inspect: - LOC - Rate and quality of respirations TNCC NOTES FOR WRITTEN EXAM PRACTICE QUESTION AND ANSWERS LATEST VERSION 2024 VERIFIED RATIONALE GRADED A+ - External bleeding? - Skin color and moisture - Assess jugular veins and peripheral veins Auscultate: - BP - Pulse pressure - Breath sounds - Heart sounds - Bowel sounds Percuss: - Chest and abdomen Palpate: - Central pulse (carotid or femoral) - Positive inotropic effect (force of contraction) may be evidence by a bounding central pulse - Palpate peripheral pulses - Palpate skin temp and moisture Diagnostic Procedures: - Xrays and other studies - Labs Planning and Implementation - Oxygen - IV's with warmed replacement fluids - Control external bleeding with direct pressure - Elevate LE's - NGT - Foley TNCC NOTES FOR WRITTEN EXAM PRACTICE QUESTION AND ANSWERS LATEST VERSION 2024 VERIFIED RATIONALE GRADED A+ - Monitor and pulse oximeter - Monitor for development of coagulopathies - Surgery? ICP is a reflection of what three volumes? What happens when one increases? - ans1. Brain 2. CSF 3. Blood within the nonexpansible cranial vault As volume of one increases, the volume of another decreases to maintain ICP within normal range. As ICP rises, CPP decreases, leading to cerebral ischemia and potential for hypoxia and lethal secondary insult. Hypotensive pt w/marginally elevated ICP can be harmful. Slightly elevated BP could protect against brain ischemia in a pt with high ICP. Cerebral ischemia can lead to increased concentration of CO2 and decreased concentration of O2 in cerebral vessels. CO2 dilates cerebral blood vessels = increase blood volume and ICP. Upon initial assessment, what type of oxygen should be used for a pt breathing effectively? - ansA tight- fitting nonrebreather mask at 12-15 lpm. What are aortic injuries S/S? - ans- Hypotension - Decreased LOC - Hypertension in UE's - Decreased quality (amplitude) of femoral pulses compared to UE pulses - Loud systolic murmur in parascapular region - Chest pain - Chest wall ecchymosis TNCC NOTES FOR WRITTEN EXAM PRACTICE QUESTION AND ANSWERS LATEST VERSION 2024 VERIFIED RATIONALE GRADED A+ - Decreased breath sounds on injured side What are s/s of chemical burns to the eye? - ansChemical injuries require immediate intervention if it is to be preserved. S/S: - Pain - Corneal Opacification - Coexisting chemical burn and swelling of lids What are S/S of penetrating trauma/open or ruptured globe? - ans- Marked visual impairments - Extrusion of intraocular contents - Flattened or shallow anterior chamber - Subconjunctival hemorrhage, hyphema - Decreased intraocular pressure - Restriction of extraocular movements What are S/S with blunt cardiac injury? - ans"Cardiac contusion" or "concussion." Common with MVC or falls from heights. - ECG (sinus tach, PVC's, AV blocks) - Chest pain - Chest wall ecchymosis What are S/S with tracheobronchial injury? - ansBlunt trauma. "Clothesline-type" injuries. - Dyspnea, tachypnea - Hoarseness - Hemoptysis TNCC NOTES FOR WRITTEN EXAM PRACTICE QUESTION AND ANSWERS LATEST VERSION 2024 VERIFIED RATIONALE GRADED A+ - Subcutaneous emphysema in neck, face, or suprasternal area - Decreased or absent breath sounds - S/S of airway obstruction What are signs of a serious eye injury? - ans- Visual disturbances - Pain - Redness and ecchymosis of the eye - Periorbital ecchymosis - Increased intraocular pressure What are signs of ineffective breathing? - ans- AMS - Cyanosis, especially around the mouth - Asymmetric expansion of chest wall - Paradoxical movement of the chest wall during inspiration and expiration - Use of accessory muscles or abdominal muscles or both or diaphragmatic breathing - Sucking chest wounds - Absent or diminished breath sounds - Administer O2 via NRB or assist ventilations with a bag-mask device, as indicated - Anticipate definitive airway management to support ventilation. What are signs of ineffective circulation? - ans- Tachycardia - AMS - Uncontrolled external bleeding - Pale, cool, moist skin - Distended or abnormally flattened external jugular veins - Distant heart sounds TNCC NOTES FOR WRITTEN EXAM PRACTICE QUESTION AND ANSWERS LATEST VERSION 2024 VERIFIED RATIONALE GRADED A+ What are the early signs and symptoms of increased ICP? - ans- Headache - N/V - Amnesia regarding events around the injury - Altered LOC - Restlessness, drowsiness, changes in speech, or loss of judgement What are the interventions for Disability? - ans- If assessment indicates a decreased LOC, conduct further investigation during secondary focused assessments - If pt is not alert or verbal, continue to monitor for any compromise to ABC's - If pt demonstrates signs of herniation or neurologic deterioration, consider hyperventilation. What are the interventions for Effective/Ineffective Circulation? - ans- Control any uncontrolled external bleeding by: - Applying direct pressure over bleeding site - Elevating bleeding extremity - Applying pressure over arterial pressure points - Using tourniquet (last resort). - Cannulate 2 large-caliber IV's and initiate infusions of an isotonic crystalloid solution - Use warmed solution - Use pressure bags to increase speed of IVF infusion - Use blood administration tubing for possible administration of blood - Use rapid infusion device based on protocol - Use NS 0.9% in same tubing as blood product - IV = surgical cut-down, central line, or both. - Blood sample to determine ABO and Rh group TNCC NOTES FOR WRITTEN EXAM PRACTICE QUESTION AND ANSWERS LATEST VERSION 2024 VERIFIED RATIONALE GRADED A+ - Use an eye patch to affected eye - Patch or shield both eyes to reduce movement + photophobia in pt's w/retinal injuries - Patch, shield or cover w/cool pack - Do NOT patch injured eye of pt w/suspected open or ruptured globe or impaled object, patch unaffected eye. Use metal or plastic and do not put pressure on the globe. - Provide psychosocial support - Obtain an ophthalmology consultation - Provide d/c instructions: - Importance of protective eyewear - No driving w/eye patch on - Wear sunglasses to prevent tearing, aid photophobia - Prepare for admission, OR or transfer What are the Rapid Sequence Intubation Steps? - ansPREPARATION: - gather equipment, staffing, etc. PREOXYGENATION: - Use 100% O2 (prevent risk of aspiration). PRETREATMENT: - Decrease S/E's of intubation PARALYSIS WITH INDUCTION: - Pt has LOC, then administer neuromuscular blocking agent PROTECTION AND POSITIONING: - Apply pressure over cricoid cartilage (minimizes likelihood of vomiting and aspiration PLACEMENT WITH PROOF - Each attempt NOT to exceed 30 seconds, max of 3 attempts. Ventilate pt 30-60 seconds between attempts. TNCC NOTES FOR WRITTEN EXAM PRACTICE QUESTION AND ANSWERS LATEST VERSION 2024 VERIFIED RATIONALE GRADED A+ - After intubation, inflate the cuff - Confirm tube placement w/exhaled CO2 detector. POSTINTUBATION MANAGEMENT: - Secure ET tube - Set ventilator settings - Obtain Chest x-ray - Continue to medicate - Recheck VS and pulse oxtimetry What are the S/S of a basilar skull fx? - ans- H/A - Altered LOC - Periorbital ecchymosis (raccoon eyes), mastoid ecchymosis (Battle's sign), or blood behind tympanic membrane (hemotympanum) - Facial nerve (VII) palsy - CSF rhinorrhea or otorrhea What are the S/S of a depressed skull fx? - ans- H/A - Possible decreased LOC - Possible open fx - Palpable depression of skull over the fx site What are the S/S of a linear skull fx? - ans- H/A - Possible decreased LOC What are the S/S of a pneumothorax? - ans- Dyspnea, tachypnea - Tachycardia TNCC NOTES FOR WRITTEN EXAM PRACTICE QUESTION AND ANSWERS LATEST VERSION 2024 VERIFIED RATIONALE GRADED A+ - Hyerresonance (increased echo produced by percussion over the lung field) on the injured side - Decreased or absent breath sounds on the injured side - Chest pain - Open, sucking wound on inspiration (open pneumothorax) What are the S/S of a tension pneumothorax? - ans- Severe respiratory distress - Markedly diminished or absent breath sounds on affected side - hypotension - Distended neck, head and upper extremity veins-may not be clinically appreciated if significant blood loss present - Tracheal deviation - shift toward uninjured side (LATE sign) - Cyanosis (LATE sign) What are the S/S of flail chest? - ans- Dyspnea - Chest wall pain - Paradoxical chest wall movement - the flail segment moves in during inspiration and out during expiration. What are the S/S of Hemothorax? - ans- Dyspnea, tachypnea - Chest pain - Signs of shock - Decreased breath sounds on injured side - Dullness to percussion on the injured side What are the S/S of orbital fracture (orbital blowout fracture)? - ans- Diplopia (double vision) - Loss of vision TNCC NOTES FOR WRITTEN EXAM PRACTICE QUESTION AND ANSWERS LATEST VERSION 2024 VERIFIED RATIONALE GRADED A+ What are you looking for when percussing the chest? - ansDullness: - hemothorax Hyperresonance - Pneumothorax What could a flail chest be associated with? - ans- Ineffective ventilation - Pulmonary contusion - Lacerated lung parenchyma What happens to a ruptured diaphragm? - ansPotentially life-threatening, results from forces that penetrate the body. Left hemidiaphragm is more susceptible to injury because the right side is protected by the liver. - Herniation of abdominal contents - Respiratory compromise b/c impaired lung capacity + displacement of normal tissue. - Mediastinal structures may shift to opposite side of injury What intervention should be done if a pt presents with effective circulation? - ans- Insert 2 large caliber IV's - Administer warmed isotonic crystalloid solution at an appropriate rate What is a cerebral contusion and its S/S? - ansA common focal brain injury in which brain tissue is bruised and damaged in a local area. Mainly located in frontal and temporal lobes. May cause hemorrhage, infarction, necrosis and edema. Max effects of bleeding & edema peak 18-36 post injury. S/S: - Alteration in LOC - Behavior, motor or speech deficits - Abnormal motor posturing - Signs of increased ICP TNCC NOTES FOR WRITTEN EXAM PRACTICE QUESTION AND ANSWERS LATEST VERSION 2024 VERIFIED RATIONALE GRADED A+ What is a Combitube? - ansA dual-lumen, dual-cuff airway that can be placed blindly into the esophagus to establish an airway. If inadvertently placed into trachea, it can be used as a temporary ET tube. There are only two sizes: small adult and larger adult. What is a concussion and its signs and symptoms? - ansA temporary change in neurologic function that may occur as a result of minor head trauma. S/S: - Transient LOC - H/A - Confusion and disorientation - Dizziness - N/V - Loss of memory - Difficulty with concentration - Irritability - Fatigue What is a flail chest? - ansA fracture of two or more sites on two or more adjacent ribs, or when rib fractures produce a free-floating sternum. Flail segments may not be clinically evident in the first several hours after injury b/c of muscle spasms that cause splinting. After positive pressure intiated, paradoxical chest wall movement ceases. What is a Laryngeal Mask Airway? - ansLooks like an ET tube but is equipped with an inflatable, elliptical, silicone rubber collar at the distal end. It is designed to cover the supraglottic area. ILMA, does not require laryngoscopy and visualization of the chords. TNCC NOTES FOR WRITTEN EXAM PRACTICE QUESTION AND ANSWERS LATEST VERSION 2024 VERIFIED RATIONALE GRADED A+ What is a pulmonary contusion? - ansThey occur as a result of direct impact, deceleration or high- velocity bullet wounds. It develops when blood leaks into lung parenchyma, causing edema + hemorrhage. This usually develops overtime and not immediately. What is a subdural hematoma and its S/S? - ansA focal brain injury beneath the dura mater that results from acceleration/deceleration. Usually venous, and not necessarily from a fx. Formation may be acute or chronic. Acute pt's hematoma manifest 48 hrs post injury S/S: - Altered LOC or steady decline in LOC - S/S of increased ICP - Hemiparesis or hemiplegia on opposite side of hematoma - Unilateral fixed and dilated pupil on same side of hematoma Chronic pt's " " up to 2 wks post injury - H/A - Progressive decrease in LOC - Ataxia - Incontinence - Sz's What is an epidural hematoma and its S/S? - ansResults when a collection of blood forms between the skull and the dura mater. Bleeding is arterial=blood accumulates rapidly: - Compression of underlying brain - rapid increase in ICP - Decreased CBF TNCC NOTES FOR WRITTEN EXAM PRACTICE QUESTION AND ANSWERS LATEST VERSION 2024 VERIFIED RATIONALE GRADED A+ S/S: - Blood in anterior chamber - Deep, aching pain - Mild to severe diminished visual acuity - Increased intraocular pressure What is kinematics? - ansA branch of mechanics (energy transfer) that refers to motion and does not consider the concepts of force and mass of the object or body. What is kinetic energy (KE)? - ansKE equals 1/2 the mass (M) multiplied by the velocity squared. What is LeFort I fracture and its S/S? - ansTransverse maxillary fx that occurs above level of teeth and results in separation of teeth from rest of maxilla. S/S: - Slight swelling of maxillary area - Possible lip lac's or fractured teeth - Independent movement of the maxilla from rest of face - Malocclusion What is LeFort II fracture and its S/S? - ansPyramidal maxillary fx=middle facial area. Apex of fx transverses bridge of nose. Two lateral fx's of pyramid extend through the lacrimal bone of the face and ethmoid bone of skull into the median portion of both orbits. Base of the fx extends above level of the upper teeth into maxilla. CSF leak is possible. S/S: - Massive facial edema - Nasal swelling w/obvious fx of nasal bones - Malocclusion - CSF rhinorrhea TNCC NOTES FOR WRITTEN EXAM PRACTICE QUESTION AND ANSWERS LATEST VERSION 2024 VERIFIED RATIONALE GRADED A+ What is LeFort III fracture and its S/S? - ansComplete craniofacial separation involving maxilla, zygoma and bones of cranial base. This fx is frequently associated w/leakage of CSF and fx mandible. S/S: - Massive facial edema - Mobility and depression of zygomatic bones - Ecchymosis - Anesthesia of the cheek - Diplopia - Open bite or malocclusion - CSF rhinorrhea What is Needle Cricothyrotomy - ansPercutaneous transtracheal ventilation. (temporary) Complications include: - inadequate ventilation causing hypoxia - hematoma formation - esophageal perforation - aspiration - thyroid perforation - subcutaneous emphysema What is Newton's First Law? - ansA body at rest will remain at rest. A body in motion will remain in motion until acted on by an outside force. What is Newton's Second Law? - ansForce equals mass multiplied by acceleration of deceleration. TNCC NOTES FOR WRITTEN EXAM PRACTICE QUESTION AND ANSWERS LATEST VERSION 2024 VERIFIED RATIONALE GRADED A+ What is renal response? - ansRenal ischemia activates release of renin. Kidneys do not receive adequate blood supply, renin is release into circulation. Renin causes angiotensinogen, normal plasma protein, to release angiotensin I. Angiotensin-converting enzyme from the lungs converts into angiotensin II. Angiotensin II causes: - Vasoconstriction of arterioles and some veins - Stimulation of sympathetic nervous system - Retention of water by kidneys - Stimulation of release of aldosterone from the adrenal cortex (sodium retention hormone) *Decreased urinary output = early sign renal hypoperfusion and an indicator that there's systemic hypoperfusion. What is Surgical Cricothyrotomy? - ansMaking an incision in cricothyroid membrane and placing a cuffed endo or trach tube into trachea. This is indicated when other methods of airway management have failed and pt cannot be adequately ventilated and oxygenated. Complications include: - Aspiration - Hemorrhage or hematoma formation or both - Lac to trachea or esophagus - Creation of a false passage