MCA 3 Exam 1 – Updated 2026/2027 – Instant Download – Complete Questions and Correct Answers

$13.49

Preview 4 out of 33 pages

Exam (elaborations)

MCA 3 Exam 1 – Updated 2026/2027 – Instant Download – Complete Questions and Correct Answers

0.0

(0 reviews)

- sold

33 pages

2025/2026

Institution

Course

Preview 4 out of 33 pages

This document contains the complete questions and verified answers for MCA 3 Exam 1. It covers EKG interpretation, including P wave, PR interval, QRS, ST segment, and QT interval normal values, as well as heart rate calculation, EKG box timing, and causes and treatment of hyperkalemia with detailed drug order. Organized in clear question-and-answer format, this material is ideal for nursing, medical assisting, and allied health students preparing for clinical exams and practical EKG interpretation.

Content preview

Page |1

MCA 3 exam 1 Questions and Correct
Answers/ Latest Update / Already Graded
P wave normal value?

Ans: 0.11 sec

PR interval normal value?

Ans: 0.12-0.20 sec

ST segment should be?

Ans: Isoelectric (flat)

QRS normal value?

Ans: 0.06-0.10 sec

QT interval normal value

Ans: O.33-0.43 sec

each tiny EKG box is how many seconds?

Ans: 0.04 seconds

All rights reserved © 2025/ 2026 |

, Page |2

each big box is how many seconds?

Ans: 0.2 seconds

How to calculate heart rate from a 6 second EKG strip?

Ans: # of R waves x 10

What causes a peaked T wave?

Ans: Hyperkalemia

What is the order of Drugs to treat Hyperkalemia?

Ans: 1. Insulin (Regular IV) plus Dextrose (Insulin shifts
potassium into cells)
2. Calcium gluconate (prevents K+ from leaving blood stream)
3. Albuterol (beta agonist; receptors in Pancreas increase
Insulin production)
4. Sodium Bicarbonate (to raise blood pH and shift extracellular
potassium into cells)
5. Kayexalate/ Sodium Polystyrene (laxative, less K+
absorption)

All rights reserved © 2025/ 2026 |

, Page |3

Assessment of Cardiac Rhythm steps?

Ans: 1. P wave present? Up or inverted? 1 for every QRS or
more? Any Atrial Flutter or Atrial Fibrillation waves present?
2. Atrial rhythm regular or irregular
3. Calculate atrial rate
4. Measure PR interval. Normal or prolonged?
5. Evaluate ventricular rhythm. Regular or irregular
6. Calculate ventricular rate
7. Measure duration of QRS complex. Normal or prolonged?
8. Assess the ST segment. Flat? elevated? depressed?
9. Measure QT interval. Normal or depressed?
10. Note T wave. Upright or inverted?

Treatment for Bradycardia?

Ans: IV Atropine
Dopamine
Epinephrine

Pacemaker

Dosing of Atropine?

All rights reserved © 2025/ 2026 |

, Page |4

Ans: 0.5 mg per dose, every 3 to 5 mins; Max 3mg

Symptomatic Bradycardia symptoms?

Ans: Pale skin, hypotension, weakness, chest pain, di iness,
syncope, SOB, confusionzz

Treatments for Sinus Tachycardia?

Ans: Treat Underlying Cause
IVF
Beta-Blockers
Calcium Channel blockers (ex: Diltiazem)
Synchronized cardioversion

Rate for SVT?

Ans: 151-220 bpm

Treatments for SVT?

Ans: Vagal maneuvers (such as baring down)
IV Adenosine
Synchronized cardioversion

All rights reserved © 2025/ 2026 |

Document information

Uploaded on: February 26, 2026
Number of pages: 33
Written in: 2025/2026
Type: Exam (elaborations)
Contains: Questions & answers

Report Copyright Violation

$13.49

Written by students who passed

Immediately available after payment

Read online or as PDF

AcademicSuperScores

4.5

(152)

Why students choose Stuvia

Created by fellow students, verified by reviews

Quality you can trust: written by students who passed their tests and reviewed by others who've used these notes.

Didn't get what you expected? Choose another document

No worries! You can instantly pick a different document that better fits what you're looking for.

Pay as you like, start learning right away

No subscription, no commitments. Pay the way you're used to via credit card and download your PDF document instantly.

“Bought, downloaded, and aced it. It really can be that simple.”

Alisha Student

Frequently asked questions

Can't I just make this for free with AI?

AI tools give you vast, general information. They don't know your course, your professor, or what actually gets asked in your exam. This document was written by a fellow student who understood the nuances of exactly this course and passed it. You get focused, curated study material, not a generic starting point you still have to rework.

Is this document still relevant for my course?

Every document shows the academic year, the linked textbook, and the institution, so you can check upfront whether it matches your course. Take a look at the free preview too to see if it fits.

What if the document isn't what I hoped?

No worries! If you change your mind within 14 days of purchase and have not downloaded the document yet, you will get a refund. Your purchase is completely risk-free.

Who am I actually buying from?

Stuvia is a marketplace: you buy directly from the student who created the document. Stuvia handles payment securely and backs every purchase with the free exchange guarantee, so you never take on any risk.

Will I be stuck with a subscription?

No. You pay $13.49 once for this document and nothing more. No subscription, no auto-renewal, no fine print.

What do I get when I buy this document?

You get a PDF that is available immediately after payment. You can read the document online or download it, and it stays accessible through your profile indefinitely.

Why can I trust Stuvia?

4.6 stars on Google and Trustpilot from over 2,000 reviews. In the past 30 days 31258 documents were sold through Stuvia internationally. And we have been doing this for 16 years now. Every document also shows its rating and how many times it has been sold.

MCA 3 Exam 1 – Updated 2026/2027 – Instant Download – Complete Questions and Correct Answers

Content preview

Document information

More like this

Why students choose Stuvia

Created by fellow students, verified by reviews

Didn't get what you expected? Choose another document

Pay as you like, start learning right away

Working on your references?

Frequently asked questions

Can't I just make this for free with AI?

Is this document still relevant for my course?

What if the document isn't what I hoped?

Who am I actually buying from?

Will I be stuck with a subscription?

What do I get when I buy this document?

Why can I trust Stuvia?

MCA 3 Exam 1 – Updated 2026/2027 – Instant Download – Complete Questions and Correct Answers

Content preview

Document information

Browse related subjects

Subjects

Why students choose Stuvia

Created by fellow students, verified by reviews

Didn't get what you expected? Choose another document

Pay as you like, start learning right away

Working on your references?

Frequently asked questions

Can't I just make this for free with AI?

Is this document still relevant for my course?

What if the document isn't what I hoped?

Who am I actually buying from?

Will I be stuck with a subscription?

What do I get when I buy this document?

Why can I trust Stuvia?