N300 Exam 4 Questions and Answers A+ Graded (2025).

N300 Exam 4 Questions and Answers
A+ Graded (2025)




What .is .Ventilation? .- .CORRECT .ANSWER-

What .is .Respiration? .- .CORRECT .ANSWER-

How .does .the .Acid/Base .Balance .effect .the .respiratory .system? .- .CORRECT
.ANSWER-


If .a .patient .can .not .breathe, .what .will .their .speech .be .like? .- .CORRECT
.ANSWER-


How .is .the .sense .of .smell .related .to .the .respiratory .system? .- .CORRECT
.ANSWER-


How .does .Fluid .Balance .effect .the .respiratory .system? .- .CORRECT .ANSWER-

What .is .acute .respiratory .failure? .- .CORRECT .ANSWER-the .inability .of .the
.respiratory .system .to .provide .oxygenation .and .remove .carbon .dioxide; .one .or

.both .of .the .gas-exchange .functions .of .the .lungs .are .compromised


The .compromise .of .the .respiratory .system .can .lead .to: .- .CORRECT .ANSWER-
hypoxemia .and/or .hypercapnia .(hypercarbia) .increased .PaO2

What .is .hypoxemia? .- .CORRECT .ANSWER-low .oxygen .levels; .PaO2 .less .than .60
.mmHg, .increased .inspired .oxygen .with .normal .or .low .PaCO2


What .is .Hypercapnia .(hypercarbia)? .- .CORRECT .ANSWER-increased .carbon
.dioxide; .PaCO2 .greater .than .50 .mmHg, .pH .less .than .7.35; .hypoxemia .may . not

.be .present


What .ABG .problem .can .occur .during .hypercapnic .state? .- .CORRECT .ANSWER-
respiratory .acidotic .state

What .is .ventilation-perfusion .mismatch? .- .CORRECT .ANSWER-

, What .are .the .early .clinical .manifestations .of .acute .respiratory .failure? .-
.CORRECT .ANSWER-dyspnea, .restlessness, .anxiety, .fatigue, .B/P .increased .from
.baseline, .tachycardia


What .are .risk .factors .for .hypoxemic .respiratory .failure? .- .CORRECT .ANSWER-
disease .processes .that .produce .V/Q .mismatch .or .impair .oxygen .perfusion .at
.alveolar .level: .pulmonary .edema, .pneumonia, .pulmonary .embolus


What .are .clinical .manifestations .of .hypoxemia? .- .CORRECT .ANSWER-increases
.in .heart . rate, .respiratory .rate, .and .blood .pressure .in .effort .to .increase
.oxygenation .and .perfusion


As .hypoxemia .progresses, .there .is .less .cerebral .perfusion .which .may .manifest
.in: .- .CORRECT .ANSWER-restlessness, .confusion, .and/or .anxiety; .may .progress
.to .cyanosis .and .or .coma


A .patient .in .respiratory .failure .may .also .present .with: .- .CORRECT .ANSWER-
manifestations .of .underlying .diseases .effected .by .impaired .perfusion ./ .lack .of
.oxygenation


What .are .some .early .clinical .manifestations .of .hypercarbia? .- .CORRECT
.ANSWER-headache, .confusion, .neuromuscular .irritability, .decreased .level .of
.consciousness .- .when .progressed: .reduced .dyspnea, .slowing .respirations,
.respiratory .acidosis


A .patient .with .hypercarbia .may .be: .- .CORRECT .ANSWER-tachypneic,
.tachycardic, .appear .dizzy, .flushed .with .pink .coloring .of .skin


What .are .intermediate .clinical .manifestations .of .acute .respiratory .failure? .-
.CORRECT .ANSWER-confusion, .lethargy .related .to .increased .CO2), .pink .skin
.coloration .related .to .increased .CO2


What .are .late .clinical .manifestations .of .acute .respiratory .failure? .- .CORRECT
.ANSWER-cyanosis, .coma


What .are .risk .factors .of .acute .respiratory .failure .with .impaired .ventilation
.(hypoventilation)? .- .CORRECT .ANSWER-airway .obstruction, .respiratory .muscle
.weakness/paralysis .with .neuromuscular .disease, .chest .wall .injury, .anesthesia,

.opioid .administration


What .are .some .examples .of .airway .obstruction .that .can .lead .to .acute .respiratory
.failure? .- .CORRECT .ANSWER-choking ./foreign .body, .growth/tumor,
.inflammation .or .reaction .(anaphylaxis), .embolus


What .are .risk .factors .of .acute .respiratory .failure .with .ventilation-perfusion
.mismatch? .- .CORRECT .ANSWER-COPD, .restrictive .lung .disease, .atelectasis,
.PE, .pneumothorax, .ARDS