100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
Previously searched by you
Previously searched by you
logo
CCRN: Drugs Questions and Answers well Explained Latest 2024/2025 Update 100% Correct. CA$11.60   Add to cart
Quickly navigate to
Preview
  2.  
  3. CCRN: Drugs
  4.  
  5. CCRN: Drugs

Exam (elaborations)

CCRN: Drugs Questions and Answers well Explained Latest 2024/2025 Update 100% Correct.
 6 views  0 purchase
  • Course
  • CCRN: Drugs
  • Institution
  • CCRN: Drugs

Side effects of Positive Pressure ventilation - 1. Increased intrathoracic pressure leads to decreased venous return to the heart, decreasing stroke volume, and CO Two types of ventilators - 1. Negative pressure ventilators- i.e iron lung 2. Positive pressure ventilators: hospital bedside ventil...

[Show more]

Preview 2 out of 13  pages

Document information

  • September 8, 2024
  • 13
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

Subjects

  • ccrn drugs

Written for

  • CCRN: Drugs
  • CCRN: Drugs

Seller

avatar-seller
ACADEMICMATERIALS

Reviews received

Content preview

CCRN: Drugs
Side effects of Positive Pressure ventilation - 1. Increased intrathoracic pressure leads to
decreased venous return to the heart, decreasing stroke volume, and CO



Two types of ventilators - 1. Negative pressure ventilators- i.e iron lung

2. Positive pressure ventilators: hospital bedside ventilators, use positive pressure to force air into the
lungs by reversing normal breathing patterns.



Stimulates both adrenergic and dopaminergic receptors, lower doses are mainly dopaminergic
stimulating and produce renal and mesenteric vasodilation, higher doses also are both dopaminergic and
beta1-adrenergic stimulating and produce cardiac stimulation and renal vasodilation; large doses
stimulate alpha-adrenergic receptors



Stroke Volume - 50-100 ml/beat



Cardiac Index - 2.5-4 l/min/m



PAOP - 8-12 mm hg



Dobutamine - Mechanism of Action



Dobutamine, a racemic mixture, stimulates myocardial beta1-adrenergic receptors, resulting in increased
contractility and heart rate, and stimulates both beta2- and alpha1-receptors in the vasculature.
Although beta2 and alpha1 adrenergic receptors are also activated, the effects of beta2 receptor
activation may equally offset or be slightly greater than the effects of alpha1 stimulation, resulting in
some vasodilation in addition to the inotropic and chronotropic actions

Beta 1 agonist/inotrope, with little beta II stimulation



Dose: 0.5-0.1 mcg/kg/min

, Nitroprusside - Mechanism of Action




Causes peripheral vasodilation by direct action on venous and arteriolar smooth muscle, thus reducing
peripheral resistance; will increase cardiac output by decreasing afterload; reduces aortal and left
ventricular impedance



Kerley B Lines - Lines found in the lower peripheral zone of the Chest xray, caused by pulmonary
edema and mycoplasma edema



Normal BNP - Less than 100 pg/mL



Normal Pulmonary Occlusive Wedge Pressure - 8-12, > 18 = LV failure -measurement of left
ventricular preload



Normal CVP - 0-5 > 10 = RV failure



Dopamine - Mechanism of Action




Serum Lactate - Measure of tissue hypoxia

Normal levels 1-2 mmoles



Normal MAP - 70-110 mm hg



SVR - 900-1300 dynes/sec/cm



CVP - Normal: 2-6, but if pt is mechanically ventilated, keep CVP between 8-12. Estimate of Right
Ventricular function

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

Guaranteed quality through customer reviews

Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.

Quick and easy check-out

Quick and easy check-out

You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.

Focus on what matters

Focus on what matters

Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!

Frequently asked questions

What do I get when I buy this document?

You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.

Satisfaction guarantee: how does it work?

Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.

Who am I buying these notes from?

Stuvia is a marketplace, so you are not buying this document from us, but from seller ACADEMICMATERIALS. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for CA$11.60. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

79223 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy study notes for 14 years now

Start selling
CA$11.60
  • (0)
  Add to cart