MDC 1 Exam 1 Rasmussen University
(Latest 2026/2027 Update) Complete
Q&A with Verified Answers and
Detailed Rationales A+ Graded |
MDC 1 Exam 1 Rasmussen University (Latest | Comprehensive
Examination
MDC 1 Exam 1 Rasmussen University (Latest 2026/2027
Update) Complete Q&A with Verified Answers and Detailed
Rationales A+ Graded actual exam preparation document
INTRODUCTION
This document is an important and very helpful preparation
resource for MDC 1 Exam 1 Rasmussen University (Latest
2026/2027 Update) Complete Q&A with Verified Answers and
Detailed Rationales A+ Graded. Every item uses a focused exam
stem, four response options, a keyed response, and a clear
rationale, making it easier to understand the subject, spot
distractors, and build real exam confidence.
Page 1
, Question 1
A nurse is preparing to administer a medication via a newly inserted peripheral
IV. Which action best reflects current CDC and INS standards for preventing
catheter-related bloodstream infection?
A. Scrub the access port with alcohol for 5 seconds before each access.
B. Disinfect the needleless connector with friction using chlorhexidine for
15 seconds and allow it to dry before access.
C. Replace the administration set every 24 hours regardless of solution
type.
D. Flush the catheter with sterile water before and after medication
administration.
Correct Answer: B - Disinfect the needleless connector with
friction using chlorhexidine for 15 seconds and allow it to dry
before access.
RATIONALE
Current INS/CDC standards require scrubbing the hub with an
appropriate antiseptic (chlorhexidine or 70% alcohol) using friction
for at least 15 seconds and allowing it to dry to prevent intraluminal
contamination. Alcohol for 5 seconds is inadequate, set changes vary
by solution (24h for lipids/blood, 96h for continuous), and sterile
water is not an appropriate flush.
Question 2
A patient's arterial blood gas shows pH 7.28, PaCO2 30 mm Hg, and HCO3-
14 mEq/L. Which interpretation is most accurate?
A. Uncompensated respiratory acidosis
B. Partially compensated metabolic acidosis
C. Fully compensated metabolic acidosis
D. Uncompensated metabolic alkalosis
Correct Answer: B - Partially compensated metabolic acidosis
Page 2
, RATIONALE
The low pH indicates acidosis; the low HCO3- identifies the
metabolic origin, and the low PaCO2 reflects respiratory
compensation that has not yet normalized pH, making it partially
compensated. Full compensation would require pH within normal
range, and the values do not fit respiratory or alkalotic patterns.
Question 3
Which assessment finding most urgently requires the nurse to escalate care for
a postoperative patient on the surgical unit?
A. Serosanguineous drainage on the surgical dressing
B. Respiratory rate of 28/min with new-onset confusion and oxygen
saturation of 89% on room air
C. Pain rated 6/10 at the incision site relieved by prescribed analgesia
D. Temperature of 37.8°C (100.0°F) within the first 24 hours after
surgery
Correct Answer: B - Respiratory rate of 28/min with new-onset
confusion and oxygen saturation of 89% on room air
RATIONALE
Tachypnea, hypoxemia, and acute mental status change suggest early
respiratory failure or pulmonary embolism and require immediate
escalation. Serosanguineous drainage is expected, controlled incisional
pain is not emergent, and a low-grade fever in the first 24 hours is a
common inflammatory response.
Question 4
A patient receiving furosemide for heart failure develops muscle weakness,
flattened T waves, and a positive U wave on ECG. Which action should the
nurse anticipate?
A. Administer intravenous calcium gluconate
B. Prepare to administer oral potassium chloride and monitor renal
Page 3
, function
C. Restrict fluids and administer additional furosemide
D. Initiate a high-potassium diet without further intervention
Correct Answer: B - Prepare to administer oral potassium
chloride and monitor renal function
RATIONALE
Loop diuretics cause hypokalemia, which presents with weakness and
characteristic ECG changes (flat T waves, U waves); replacement with
potassium and monitoring renal function is indicated. Calcium
gluconate treats hyperkalemia, additional diuresis worsens
hypokalemia, and diet alone is insufficient for symptomatic depletion.
Question 5
Which statement by a patient scheduled for surgery best indicates a need for
further preoperative teaching about infection prevention?
A. I will shower with the prescribed antiseptic soap the night before and
the morning of surgery.
B. I will shave the surgical site with a razor the morning of surgery to
remove hair.
C. I will avoid shaving the surgical site and let the surgical team handle
hair removal if needed.
D. I will report any new fever, cough, or skin infection before my surgery
date.
Correct Answer: B - I will shave the surgical site with a razor the
morning of surgery to remove hair.
RATIONALE
Current guidelines recommend against razor shaving due to
microabrasions that increase surgical site infection risk; clippers or
depilatory agents are preferred if hair removal is necessary. The other
statements reflect correct preoperative infection-prevention practices.
Page 4
(Latest 2026/2027 Update) Complete
Q&A with Verified Answers and
Detailed Rationales A+ Graded |
MDC 1 Exam 1 Rasmussen University (Latest | Comprehensive
Examination
MDC 1 Exam 1 Rasmussen University (Latest 2026/2027
Update) Complete Q&A with Verified Answers and Detailed
Rationales A+ Graded actual exam preparation document
INTRODUCTION
This document is an important and very helpful preparation
resource for MDC 1 Exam 1 Rasmussen University (Latest
2026/2027 Update) Complete Q&A with Verified Answers and
Detailed Rationales A+ Graded. Every item uses a focused exam
stem, four response options, a keyed response, and a clear
rationale, making it easier to understand the subject, spot
distractors, and build real exam confidence.
Page 1
, Question 1
A nurse is preparing to administer a medication via a newly inserted peripheral
IV. Which action best reflects current CDC and INS standards for preventing
catheter-related bloodstream infection?
A. Scrub the access port with alcohol for 5 seconds before each access.
B. Disinfect the needleless connector with friction using chlorhexidine for
15 seconds and allow it to dry before access.
C. Replace the administration set every 24 hours regardless of solution
type.
D. Flush the catheter with sterile water before and after medication
administration.
Correct Answer: B - Disinfect the needleless connector with
friction using chlorhexidine for 15 seconds and allow it to dry
before access.
RATIONALE
Current INS/CDC standards require scrubbing the hub with an
appropriate antiseptic (chlorhexidine or 70% alcohol) using friction
for at least 15 seconds and allowing it to dry to prevent intraluminal
contamination. Alcohol for 5 seconds is inadequate, set changes vary
by solution (24h for lipids/blood, 96h for continuous), and sterile
water is not an appropriate flush.
Question 2
A patient's arterial blood gas shows pH 7.28, PaCO2 30 mm Hg, and HCO3-
14 mEq/L. Which interpretation is most accurate?
A. Uncompensated respiratory acidosis
B. Partially compensated metabolic acidosis
C. Fully compensated metabolic acidosis
D. Uncompensated metabolic alkalosis
Correct Answer: B - Partially compensated metabolic acidosis
Page 2
, RATIONALE
The low pH indicates acidosis; the low HCO3- identifies the
metabolic origin, and the low PaCO2 reflects respiratory
compensation that has not yet normalized pH, making it partially
compensated. Full compensation would require pH within normal
range, and the values do not fit respiratory or alkalotic patterns.
Question 3
Which assessment finding most urgently requires the nurse to escalate care for
a postoperative patient on the surgical unit?
A. Serosanguineous drainage on the surgical dressing
B. Respiratory rate of 28/min with new-onset confusion and oxygen
saturation of 89% on room air
C. Pain rated 6/10 at the incision site relieved by prescribed analgesia
D. Temperature of 37.8°C (100.0°F) within the first 24 hours after
surgery
Correct Answer: B - Respiratory rate of 28/min with new-onset
confusion and oxygen saturation of 89% on room air
RATIONALE
Tachypnea, hypoxemia, and acute mental status change suggest early
respiratory failure or pulmonary embolism and require immediate
escalation. Serosanguineous drainage is expected, controlled incisional
pain is not emergent, and a low-grade fever in the first 24 hours is a
common inflammatory response.
Question 4
A patient receiving furosemide for heart failure develops muscle weakness,
flattened T waves, and a positive U wave on ECG. Which action should the
nurse anticipate?
A. Administer intravenous calcium gluconate
B. Prepare to administer oral potassium chloride and monitor renal
Page 3
, function
C. Restrict fluids and administer additional furosemide
D. Initiate a high-potassium diet without further intervention
Correct Answer: B - Prepare to administer oral potassium
chloride and monitor renal function
RATIONALE
Loop diuretics cause hypokalemia, which presents with weakness and
characteristic ECG changes (flat T waves, U waves); replacement with
potassium and monitoring renal function is indicated. Calcium
gluconate treats hyperkalemia, additional diuresis worsens
hypokalemia, and diet alone is insufficient for symptomatic depletion.
Question 5
Which statement by a patient scheduled for surgery best indicates a need for
further preoperative teaching about infection prevention?
A. I will shower with the prescribed antiseptic soap the night before and
the morning of surgery.
B. I will shave the surgical site with a razor the morning of surgery to
remove hair.
C. I will avoid shaving the surgical site and let the surgical team handle
hair removal if needed.
D. I will report any new fever, cough, or skin infection before my surgery
date.
Correct Answer: B - I will shave the surgical site with a razor the
morning of surgery to remove hair.
RATIONALE
Current guidelines recommend against razor shaving due to
microabrasions that increase surgical site infection risk; clippers or
depilatory agents are preferred if hair removal is necessary. The other
statements reflect correct preoperative infection-prevention practices.
Page 4
