Placental transfer mechanisms

Time for round 2 with Pat are very generous trainee who's offered to be quizzed on our podcast.

Here are the questions from this round:

Stem 5

1.     How does heparin work?

2.     How about low molecular weight heparin?

3.     Why do we monitor unfractionated heparin but not low molecular weight heparin?
 Due to lower binding to plasma proteins and to cell surfaces, the plasma anti Xa activity generated by a given dose of LMWH is more predictable than for UH. 

4.     How do we monitor unfractionated heparin’s effect?

5.     How is the clearance of unfractionated heparin different to that of low molecular weight heparin?

Stem 6

1.     What are the main differences between intracellular and extracellular ion concentrations?

2.     What is the function of potassium?

3.     What is the NERST potential?

4.     What are the ECG changes in hyperkalaemia?

5.     What is the treatment for hyperkalaemia?

Stem 7

1.     What are the functions of the placenta?

2.     How is the placenta different to the lung?

3.     How are substances transferred across the placenta?

4.     What are the factors that affect transfer of O2 across the placenta?

5.     What are the factors that affect placental blood flow?

Stem 8

1.     During anaesthesia, you notice a difference between the End Tidal CO2 and Arterial CO2. What can you do to minimise this difference?

2.     How do you measure physiological dead space?

3.     How do you measure anatomical dead space?

4.     What increases anatomical dead space?

5.     What is closing capacity? 

Please rate, post a review and subscribe!

Check out https://anaesthesiacollective.com/education/first-part-exam/ for general information and a collection of model answers

and 
sign up to the ABCs of Anaesthesia facebook group https://www.facebook.com/groups/2082807131964430

and check out the ABCs of Anaesthesia YouTube channel for more content
https://www.youtube.com/c/ABCsofAnaesthesia

If you have any questions, please email Lahiruandstan@gmail.com 

Disclaimer:

The information contained in this podcast is for medical practitioner education only. It is not and will not be relevant for the general public.

This contains general information about medical conditions and treatments. The information is not advice and should not be treated as such. 

The medical information is provided “as is” without any representations or warranties, express or implied. 

The presenter makes no representations or warranties in relation to the medical information on this episode. 

You must not rely on the information as an alternative to assessing and managing your patient with your treating team and consultant.

You should seek your own advice from your medical practitioner in relation to any of the topics discussed in this episode’

Medical information can change rapidly, and the author/s make all reasonable attempts to provide accurate information at the time of filming. There is no guarantee that the information will be accurate at the time of viewing

The information presented here does not represent the views of any hospital or ANZCA.

These podcasts are solely for training and education of medical practitioners, and are not an advertisement. They were not sponsored and offer no discounts, gifts or other inducements.