|
Title: PhysioEx 8.0 Exercise 6: Activity 9 Post by: laura.412 on Apr 19, 2011 Was wondering what results are for (basically checking some of my answers)
Activity 9: Assessing the Effect of Various Ions Effect of Calcium Ions:Effect of Sodium Ions: Effect of Potassium Ions: (questions are the same for each activity) 1. Does the heart rate stabilize and remain stable? No. 2. Describe your observations of the rhythm of the heartbeat: The heart rate fluctuated between a decrease and an increase in bpm. I got the same answers for each... Would this be correct? Also: 10. Was there any evidence of premature beats in the recording of potassium ion effects? 11. Was arrythmia produced with any of the ions tested? If so, which? Thanks so much for your help! Title: Re: PhysioEx 8.0 Exercise 6: Activity 9 Post by: duddy on Apr 19, 2011 This is all I have for that section:
Activity 9: Assessing the Effect of Various Ions (p. 79) 6. Calcium increases the strength of contraction; probably induces spasticity. • The heart rate does not stabilize until 23°C Ringers solution is applied. • The heartbeat is irregular, speeding up at times, slowing down at others. Sodium decreases the strength and rate of contraction. • The heart rate does not stabilize until 23°C Ringers solution is applied. • The heartbeat is irregular, speeding up at times, slowing down at others. Potassium weakens cardiac contractions. • The heart rate does not stabilize until 23°C Ringers solution is applied. • The heartbeat decreases considerably at first, then becomes erratic—alternately speeding up and slowing down. Yes, all three ions may induce arrhythmias. Title: Re: PhysioEx 8.0 Exercise 6: Activity 9 Post by: laura.412 on Apr 19, 2011 Thank you, Duddy! Much appreciated. Now I will go back through those. It's the only way I'll learn it!
Title: Re: PhysioEx 8.0 Exercise 6: Activity 9 Post by: simsim on Apr 28, 2011 in Activity 9, was there any evidence of premature beats in the recording of potassium ion effects?
Title: Re: PhysioEx 8.0 Exercise 6: Activity 9 Post by: duddy on Apr 28, 2011 Potassium weakens cardiac contractions.
• The heart rate does not stabilize until 23°C Ringers solution is applied. • The heartbeat decreases considerably at first, then becomes erratic—alternately speeding up and slowing down. It induces arrhythmias. Title: Re: PhysioEx 8.0 Exercise 6: Activity 9 Post by: sassy9138 on Jun 11, 2011 This is all I have for that section: Activity 9: Assessing the Effect of Various Ions (p. 79) 6. Calcium increases the strength of contraction; probably induces spasticity. • The heart rate does not stabilize until 23°C Ringers solution is applied. • The heartbeat is irregular, speeding up at times, slowing down at others. Sodium decreases the strength and rate of contraction. • The heart rate does not stabilize until 23°C Ringers solution is applied. • The heartbeat is irregular, speeding up at times, slowing down at others. Potassium weakens cardiac contractions. • The heart rate does not stabilize until 23°C Ringers solution is applied. • The heartbeat decreases considerably at first, then becomes erratic—alternately speeding up and slowing down. Yes, all three ions may induce arrhythmias. Duddy, Can you give me the Why this happens with calcium ions specifically I'm kinda stuck. Title: Re: PhysioEx 8.0 Exercise 6: Activity 9 Post by: sassy9138 on Jun 11, 2011 Ok thank you. :)
|