Interpret the following ABG:
PH 7.51
Pa02 88
PaC02 32
Bicarb (HC03-) 26
Sa02 95%
respiratory acidosis
respiratory alkalosis
metabolic acidosis
metabolic alkalosis
The Correct Answer is B
A. Respiratory acidosis: Respiratory acidosis would present with a low pH (below 7.35) and a high PaCO2 (above 45 mmHg).
B. Respiratory alkalosis: This ABG shows a high pH (7.51), low PaCO2 (32 mmHg), and normal HCO3- (26 mEq/L), indicating respiratory alkalosis, typically due to hyperventilation.
C. Metabolic acidosis: Metabolic acidosis would present with a low pH and low HCO3-, but in this case, the HCO3- is normal.
D. Metabolic alkalosis: Metabolic alkalosis would show a high pH and high HCO3-, but the HCO3- in this ABG is normal.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. "Controlling my blood pressure will decrease my risk of having a heart attack to some degree." This statement is accurate. Controlling blood pressure reduces the risk of developing ACS.
B. "Because I'm over 80, even a 20 mm Hg drop in my blood pressure can reduce my risk." Research indicates that even modest reductions in blood pressure can significantly lower the risk of cardiovascular events, especially in older adults.
C. "High blood pressure will increase my body's need for oxygen and increase my heart's workload." High blood pressure increases myocardial oxygen demand and can lead to ischemia, which is a precursor to ACS.
D. "My high blood pressure has no relationship to the severity of heart disease or its outcomes." This statement is false. High blood pressure is a major risk factor for heart disease, including ACS, and it directly affects the severity and outcomes of heart disease.
Correct Answer is D
Explanation
A. Administer a stat fluid challenge: This might temporarily improve cardiac output in tamponade, but it is not the primary intervention. The fluid challenge may be used as a temporary measure, but it does not address the underlying cause.
B. Place the patient in a prone position: This is incorrect and could worsen the patient's condition. The patient should be in a semi-recumbent position to decrease venous return and reduce pressure on the heart.
C. Draw a stat CBC: A CBC is not relevant to the immediate management of cardiac tamponade and does not address the urgent need to relieve the pressure on the heart.
D. Perform a stat pericardiocentesis: Pericardiocentesis is the definitive treatment for cardiac tamponade, as it removes the fluid from the pericardial space, relieving the pressure on the heart and allowing it to function properly.
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