Which of the following samples is used to measure blood pH and blood gases?
Capillary blood
Arterial blood
Venous blood
Cerebrospinal fluid
The Correct Answer is B
A. Capillary blood: Capillary blood can be used in some cases, especially in infants, but it is less accurate than arterial blood for measuring blood pH and gases.
B. Arterial blood: Arterial blood is the correct sample for measuring blood pH and gases (such as oxygen and carbon dioxide levels) because it reflects the gas exchange occurring in the lungs.
C. Venous blood: Venous blood is not typically used for measuring blood gases as it does not accurately reflect the oxygenation status of the body.
D. Cerebrospinal fluid: Cerebrospinal fluid is not used for measuring blood pH and gases; it is typically analyzed for conditions affecting the brain and spinal cord.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. Choose procedure codes based on the encounter form. The encounter form, also known as a superbill, lists the procedures and services provided during the visit. The correct procedure codes (CPT codes) should be selected from this form to ensure accurate billing.
B. Upcode for greater reimbursement. Upcoding, or selecting a higher-level code than justified, is illegal and unethical as it constitutes fraud. This should never be done.
C. Refer to ICD-9 for diagnostic codes. ICD-9 codes have been replaced by ICD-10 codes, which are now the standard for diagnostic coding in the United States. Referring to ICD-9 codes would result in incorrect or outdated billing.
D. Enter all data using lowercase letters. Data entry in all lowercase letters is not a standard practice in medical billing and would not affect the accuracy of the codes. Proper case usage is typically recommended for clarity.
Correct Answer is D
Explanation
A. Human hair: Human hair is not considered potentially infectious material under the Bloodborne Pathogens Standard.
B. Sweat: Sweat is not classified as potentially infectious material because it does not typically contain bloodborne pathogens.
C. Normal saliva: Normal saliva is not classified as potentially infectious material; however, saliva can be considered potentially infectious if it is visibly contaminated with blood.
D. Septic wound: A septic wound contains pus and is considered potentially infectious material because it can contain pathogens.
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